Nissan tech will add 10 hp to my car could it be????
Thread Starter
Senior Member
Joined: May 2002
Posts: 612
Nissan tech will add 10 hp to my car could it be????
On sunday I cleaned my throttle body and put the stock filter back on my car. When I started the car up my engine was reving higher than usual. My RPM's instead being at around 700 they were more like 1200. I disconnected the battery over night and started my car up again the next day, with the same problem.
I took my car to Nissan dealer in Schaumburg (Golf and Higgins) and as I pulled into the service area I see one of my friends working there. He told me that he has just moved to that location and I explained to him what my problem was. I also asked him while he is doing work on my car is there a way for him to reprogram my ECU so I het more HP. He explained to me that he can crank SOMETHING up by .2 and that should add about 10 hp to my car. I forgot what the thind was called but I will find out today when I pick up my car and let u guys know if my car feels any faster. If this is true than I just got free 10 hp and that would be awsome.
I took my car to Nissan dealer in Schaumburg (Golf and Higgins) and as I pulled into the service area I see one of my friends working there. He told me that he has just moved to that location and I explained to him what my problem was. I also asked him while he is doing work on my car is there a way for him to reprogram my ECU so I het more HP. He explained to me that he can crank SOMETHING up by .2 and that should add about 10 hp to my car. I forgot what the thind was called but I will find out today when I pick up my car and let u guys know if my car feels any faster. If this is true than I just got free 10 hp and that would be awsome.
Thread Starter
Senior Member
Joined: May 2002
Posts: 612
Originally Posted by 2k2wannabe
Timing? That won't "add" 10hp.
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Joined: Sep 2003
Posts: 930
Originally Posted by xfirepwr1
I know timing was one of the things he will do, but also something with reprogramming the ECU. Like I said I will get my car today and hopefully I can feel the difference like he said. I will ask him exactly what he did. I wish I could take my car to the track cause if this is true then my car (auto) would break 14.5 (14.7 best run), but its a lil too cold here in Chicago area for that.
) and dropped in som BG 44K fuel system cleaner. Last week, I ran TWO 14.76's 94.5 (check the 1/4 forum for writeup) while at GLD in Union Grove in good weather, no humidity, decent track prep. Same track you ran your stock Auto VQ35 to your 14.77...Stock Auto VQ35's are definitely capable of 14.5's-14.7's given the right conditions, and good driving. I really don't feel bad about having bought an Auto over a 6spd now...
Next Spring we should hook up and run together...
Thread Starter
Senior Member
Joined: May 2002
Posts: 612
Originally Posted by Ferbs02SMMax
Remember I ran 15.3's at Union Grove ? I reprogrammed ECU, bought new set of tires (Sumitomo HTR+'s ) and dropped in som BG 44K fuel system cleaner. Last week, I ran TWO 14.76's 94.5 (check the 1/4 forum for writeup) while at GLD in Union Grove in good weather, no humidity, decent track prep. Same track you ran your stock Auto VQ35 to your 14.77...
Stock Auto VQ35's are definitely capable of 14.5's-14.7's given the right conditions, and good driving. I really don't feel bad about having bought an Auto over a 6spd now...
Next Spring we should hook up and run together...
) and dropped in som BG 44K fuel system cleaner. Last week, I ran TWO 14.76's 94.5 (check the 1/4 forum for writeup) while at GLD in Union Grove in good weather, no humidity, decent track prep. Same track you ran your stock Auto VQ35 to your 14.77...Stock Auto VQ35's are definitely capable of 14.5's-14.7's given the right conditions, and good driving. I really don't feel bad about having bought an Auto over a 6spd now...
Next Spring we should hook up and run together...
Junior Member
Joined: Oct 2003
Posts: 24
Originally Posted by xfirepwr1
I know timing was one of the things he will do, but also something with reprogramming the ECU. Like I said I will get my car today and hopefully I can feel the difference like he said. I will ask him exactly what he did. I wish I could take my car to the track cause if this is true then my car (auto) would break 14.5 (14.7 best run), but its a lil too cold here in Chicago area for that.
Thread Starter
Senior Member
Joined: May 2002
Posts: 612
Originally Posted by MmaximaSE01
Its never too cold for racing, getting the tires to sick could suck tho, as far as the high idle problem...what did u use to clean the TB? u may have got something into the IAC valve (Idle air control) that caused it to start up at high rpms. thats all i can think of. 10 hp not likely, i have no idea bout that.
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Joined: May 2002
Posts: 612
Originally Posted by wild *****
Like all Nissan mechanics I have encountered...Your friend may have very well gone to the Full of Shiat School of Automotive Training.
What octane do you run?
If 93+ octane, have him bump the timing to 17*BTDC, perform the Idle Air Volume Learning Procedure, then bump it to 20*BTDC.
If 93+ octane, have him bump the timing to 17*BTDC, perform the Idle Air Volume Learning Procedure, then bump it to 20*BTDC.
Originally Posted by xfirepwr1
Like I said I will let u guys know if my car feels faster when I pick it up today, even if I can get a lil gain from this its still a free gain.
Read your FSM, if you have one.
2K-2K1s require a Consult-II to perform the procedure, but according to TechnoSquares' procedure on their website, 2K2+ can do this manually.
Basically, you re-teach your ECU, if you change any of the sensor inputs, ie advance timing, change idle, replace MAF, etc...
2K-2K1s require a Consult-II to perform the procedure, but according to TechnoSquares' procedure on their website, 2K2+ can do this manually.
Basically, you re-teach your ECU, if you change any of the sensor inputs, ie advance timing, change idle, replace MAF, etc...
Hmm, might have the procedure (alldatadiy seems to be a mirror of most of the FSM)...
Can one force this by cutting power to the ECU for an hour or 2 to reset it?
Nevermind, here we go--
Idle Air Volume Learning
DESCRIPTION
"Idle Air Volume Learning" is an operation to learn the idle air volume that keeps each engine within the specific range. It must be performed under any of the following conditions:
* Each time IACV-AAC valve, throttle body or ECM is replaced.
* Idle speed or ignition timing is out of specification.
PRE-CONDITIONING
Before performing "Idle Air Volume Learning", make sure that all of
the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are
missed for even a moment.
* Battery voltage: More than 12.9 V (At idle)
* Engine coolant temperature: 70 - 99°C (158 - 210°F)
* PNP switch: ON
* Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime running light Systems, set lighting switch to the 1st position to light only small lamps.
* Cooling fan motor: Not operating
* Steering wheel: Neutral (Straight-ahead position)
* Vehicle speed: Stopped
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check that all items listed under the topic "PRE-CONDITIONING" (previously mentioned) are in good order.
3. Turn ignition switch "OFF" and wait at least 10 seconds .
4. Start the engine and let it idle for at least 30 seconds .
5. Select "IDLE AIR VOL LEARN" in "ACTIVE TEST" mode.
6. Touch "START' and wait 20 seconds .
7. Make sure that "CMPLT" is displayed on CONSULT-II screen. If "INCMP" is displayed, "Idle Air Volume Learning" will not be carried out successfully. In this case, find the cause of the problem by referring to the NOTE below.
8. Rev up the engine two or three times. Make sure that idle speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625 ±50 rpm
A/T: 700 ±50 rpm (in "P" or "N" position)
Ignition timing M/T: 15°±2°BTDC
A/T: 15°±2°BTDC (in "P" or "N" position)
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check that all items listed under the topic "PRE-CONDITIONING" (previously mentioned) are in good order.
3. Turn ignition switch "OFF" and wait at least 10 seconds .
4. Start the engine and let it idle for at least 30 seconds .
5. Disconnect throttle position sensor harness connector (brown), then reconnect it within 5 seconds .
6. Wait 20 seconds .
7. Make sure that idle speed is within specifications. If not, the result will be incomplete. In this case, find the cause of the problem by referring to the NOTE below.
8. Rev up the engine two or three times. Make sure that idle speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625 ±50 rpm
A/T: 700 ±50 rpm (in "P" or "N" position)
Ignition timing M/T: 15°±2°BTDC
A/T: 15°±2°BTDC (in "P" or "N" position)
NOTE:
If idle air volume learning cannot be performed successfully,
proceed as follows:
1. Check that throttle valve is fully closed.
2. Check that downstream of throttle valve is free from air leakage.
3. Adjust closed throttle position switch and reset memory. (Refer to Basic Inspection.)
4. When the above three items check out OK, engine component parts and their installation condition are questionable. Check and eliminate the cause of the problem.
5. If any of the following conditions occur after the engine has started, eliminate the cause of the problem and perform "Idle air volume learning" all over again:
o Engine stalls.
o Erroneous idle.
o Blown fuses related to the IACV-AAC valve system.
Can one force this by cutting power to the ECU for an hour or 2 to reset it?
Nevermind, here we go--
Idle Air Volume Learning
DESCRIPTION
"Idle Air Volume Learning" is an operation to learn the idle air volume that keeps each engine within the specific range. It must be performed under any of the following conditions:
* Each time IACV-AAC valve, throttle body or ECM is replaced.
* Idle speed or ignition timing is out of specification.
PRE-CONDITIONING
Before performing "Idle Air Volume Learning", make sure that all of
the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are
missed for even a moment.
* Battery voltage: More than 12.9 V (At idle)
* Engine coolant temperature: 70 - 99°C (158 - 210°F)
* PNP switch: ON
* Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime running light Systems, set lighting switch to the 1st position to light only small lamps.
* Cooling fan motor: Not operating
* Steering wheel: Neutral (Straight-ahead position)
* Vehicle speed: Stopped
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check that all items listed under the topic "PRE-CONDITIONING" (previously mentioned) are in good order.
3. Turn ignition switch "OFF" and wait at least 10 seconds .
4. Start the engine and let it idle for at least 30 seconds .
5. Select "IDLE AIR VOL LEARN" in "ACTIVE TEST" mode.
6. Touch "START' and wait 20 seconds .
7. Make sure that "CMPLT" is displayed on CONSULT-II screen. If "INCMP" is displayed, "Idle Air Volume Learning" will not be carried out successfully. In this case, find the cause of the problem by referring to the NOTE below.
8. Rev up the engine two or three times. Make sure that idle speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625 ±50 rpm
A/T: 700 ±50 rpm (in "P" or "N" position)
Ignition timing M/T: 15°±2°BTDC
A/T: 15°±2°BTDC (in "P" or "N" position)
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check that all items listed under the topic "PRE-CONDITIONING" (previously mentioned) are in good order.
3. Turn ignition switch "OFF" and wait at least 10 seconds .
4. Start the engine and let it idle for at least 30 seconds .
5. Disconnect throttle position sensor harness connector (brown), then reconnect it within 5 seconds .
6. Wait 20 seconds .
7. Make sure that idle speed is within specifications. If not, the result will be incomplete. In this case, find the cause of the problem by referring to the NOTE below.
8. Rev up the engine two or three times. Make sure that idle speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625 ±50 rpm
A/T: 700 ±50 rpm (in "P" or "N" position)
Ignition timing M/T: 15°±2°BTDC
A/T: 15°±2°BTDC (in "P" or "N" position)
NOTE:
If idle air volume learning cannot be performed successfully,
proceed as follows:
1. Check that throttle valve is fully closed.
2. Check that downstream of throttle valve is free from air leakage.
3. Adjust closed throttle position switch and reset memory. (Refer to Basic Inspection.)
4. When the above three items check out OK, engine component parts and their installation condition are questionable. Check and eliminate the cause of the problem.
5. If any of the following conditions occur after the engine has started, eliminate the cause of the problem and perform "Idle air volume learning" all over again:
o Engine stalls.
o Erroneous idle.
o Blown fuses related to the IACV-AAC valve system.
PWNED by server. Doh!
Anyways,
I don't think so.
On a 2K/2K1 disconnecting the battery long enough to reset the ECU will only lose all short/long term fuel trim data and fault history. The ECU will then revert back to factory presets and work from there to build/modify the maps.
The IAVL procedure learns/stores base values of any sensors that the ECU uses to control engine operation, which includes at a minimum: IACV-AAC valve, MAF voltage, throttle-body(ie TPS), ignition timing, and base idle rpm to keep the engine "within the specific range".
Also, that procedure is from an early 2K FSM. Later 2K and 2K1 say 15*+/-5*. I think 2K2+ are also +/-5*.
Anyways,
I don't think so.
On a 2K/2K1 disconnecting the battery long enough to reset the ECU will only lose all short/long term fuel trim data and fault history. The ECU will then revert back to factory presets and work from there to build/modify the maps.
The IAVL procedure learns/stores base values of any sensors that the ECU uses to control engine operation, which includes at a minimum: IACV-AAC valve, MAF voltage, throttle-body(ie TPS), ignition timing, and base idle rpm to keep the engine "within the specific range".
Also, that procedure is from an early 2K FSM. Later 2K and 2K1 say 15*+/-5*. I think 2K2+ are also +/-5*.
If they say this should be performed after anything such as IACV-AAC replacement, Throttle Body replacement, etc... it's conceivable to me that TB cleaning, manifold cleaning, or changes in the intake plumbing should warrant this procedure as well... although it sounds like it only affects idle, not normal operation.
Originally Posted by IceY2K1
PWNED by server. Doh!
Anyways,
I don't think so.
On a 2K/2K1 disconnecting the battery long enough to reset the ECU will only lose all short/long term fuel trim data and fault history. The ECU will then revert back to factory presets and work from there to build/modify the maps.
The IAVL procedure learns/stores base values of any sensors that the ECU uses to control engine operation, which includes at a minimum: IACV-AAC valve, MAF voltage, throttle-body(ie TPS), ignition timing, and base idle rpm to keep the engine "within the specific range".
Also, that procedure is from an early 2K FSM. Later 2K and 2K1 say 15*+/-5*. I think 2K2+ are also +/-5*.
Anyways,
I don't think so.
On a 2K/2K1 disconnecting the battery long enough to reset the ECU will only lose all short/long term fuel trim data and fault history. The ECU will then revert back to factory presets and work from there to build/modify the maps.
The IAVL procedure learns/stores base values of any sensors that the ECU uses to control engine operation, which includes at a minimum: IACV-AAC valve, MAF voltage, throttle-body(ie TPS), ignition timing, and base idle rpm to keep the engine "within the specific range".
Also, that procedure is from an early 2K FSM. Later 2K and 2K1 say 15*+/-5*. I think 2K2+ are also +/-5*.
Anything that changes AIR FLOW or perceived air flow warrants it.
What it learns affects more then just idle.
What it learns affects more then just idle.
Originally Posted by spirilis
If they say this should be performed after anything such as IACV-AAC replacement, Throttle Body replacement, etc... it's conceivable to me that TB cleaning, manifold cleaning, or changes in the intake plumbing should warrant this procedure as well... although it sounds like it only affects idle, not normal operation.
That's all I noticed, but I haven't looked too hard.
Originally Posted by spirilis
Is that the only difference between the early-2K and later-2K/2K1 procedure? (the ignition timing tolerance?)
2K1 FSM states:
So it CAN be done without a Consult-II for 2K-2K1s. You just don't get the fancy blinking apparently.
Idle Air Volume Learning
DESCRIPTION:
“Idle Air Volume Learning” is an operation to learn the idle air volume
that keeps each engine within the specific range. It must be
performed under any of the following conditions:
I Each time IACV-AAC valve, throttle body or ECM is replaced.
I Idle speed or ignition timing is out of specification.
PRE-CONDITIONING
Before performing “Idle Air Volume Learning”, make sure that all of
the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are
missed for even a moment.
I Battery voltage: More than 12.9V (At idle)
I Engine coolant temperature: 70 - 99°C (158 - 210°F)
I PNP switch: ON
I Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting
switch to the 1st position to light only small lamps.
I Cooling fan motor: Not operating
I Steering wheel: Neutral (Straight-ahead position)
I Vehicle speed: Stopped
I Transmission: Warmed-up
For A/T models WITH CONSULT-II, drive vehicle until “FLUID
TEMP SE” in “DATA MONITOR” mode of “A/T” system indicates
less than 0.9V.
For A/T models withOUT CONSULT-II and M/T models, drive
vehicle for 10 minutes.
OPERATION PROCEDURE With CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Turn ignition switch “OFF” and wait at least 10 seconds.
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic “PRE-CONDITIONING”
(previously mentioned) are in good order.
5. Turn ignition switch “OFF” and wait at least 10 seconds.
6. Start the engine and let it idle for at least 30 seconds.
7. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
8. Touch “START” and wait 20 seconds.
9. Make sure that “CMPLT” is displayed on CONSULT-II screen.
If “INCMP” is displayed, “Idle Air Volume Learning” will not be
carried out successfully. In this case, find the cause of the
problem by referring to the NOTE below.
10. Rev up the engine two or three times. Make sure that idle
speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625±50 rpm
A/T: 700±50 rpm (in “P” or “N” position)
Ignition timing M/T: 15°±5° BTDC
A/T: 15°±5° BTDC (in “P” or “N” position)
Without CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Turn ignition switch “OFF” and wait at least 10 seconds.
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic “PRE-CONDITIONING”
(previously mentioned) are in good order.
5. Turn ignition switch “OFF” and wait at least 10 seconds.
6. Start the engine and let it idle for at least 30 seconds.
7. Disconnect throttle position sensor harness connector (brown),
then reconnect it within 5 seconds.
8. Wait 20 seconds.
9. Make sure that idle speed is within specifications. If not, the
result will be incomplete. In this case, find the cause of the
problem by referring to the NOTE below.
10. Rev up the engine two or three times. Make sure that idle
speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625±50 rpm
A/T: 700±50 rpm (in “P” or “N” position)
Ignition timing M/T: 15°±5° BTDC
A/T: 15°±5° BTDC (in “P” or “N” position)
NOTE:
If idle air volume learning cannot be performed successfully,
proceed as follows:
1) Check that throttle valve is fully closed.
2) Check PCV valve operation.
3) Check that downstream of throttle valve is free from air
leakage.
4) Adjust closed throttle position switch and reset memory.
(Refer to Basic Inspection, EC-111.)
5) When the above three items check out OK, engine component
parts and their installation condition are questionable.
Check and eliminate the cause of the problem.
It is useful to perform “TROUBLE DIAGNOSIS — SPECIFICATION
VALUE”, EC-143.
6) If any of the following conditions occur after the engine
has started, eliminate the cause of the problem and perform
“Idle air volume learning” all over again:
I Engine stalls.
I Erroneous idle.
I Blown fuses related to the IACV-AAC valve system.
DESCRIPTION:
“Idle Air Volume Learning” is an operation to learn the idle air volume
that keeps each engine within the specific range. It must be
performed under any of the following conditions:
I Each time IACV-AAC valve, throttle body or ECM is replaced.
I Idle speed or ignition timing is out of specification.
PRE-CONDITIONING
Before performing “Idle Air Volume Learning”, make sure that all of
the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are
missed for even a moment.
I Battery voltage: More than 12.9V (At idle)
I Engine coolant temperature: 70 - 99°C (158 - 210°F)
I PNP switch: ON
I Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting
switch to the 1st position to light only small lamps.
I Cooling fan motor: Not operating
I Steering wheel: Neutral (Straight-ahead position)
I Vehicle speed: Stopped
I Transmission: Warmed-up
For A/T models WITH CONSULT-II, drive vehicle until “FLUID
TEMP SE” in “DATA MONITOR” mode of “A/T” system indicates
less than 0.9V.
For A/T models withOUT CONSULT-II and M/T models, drive
vehicle for 10 minutes.
OPERATION PROCEDURE With CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Turn ignition switch “OFF” and wait at least 10 seconds.
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic “PRE-CONDITIONING”
(previously mentioned) are in good order.
5. Turn ignition switch “OFF” and wait at least 10 seconds.
6. Start the engine and let it idle for at least 30 seconds.
7. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
8. Touch “START” and wait 20 seconds.
9. Make sure that “CMPLT” is displayed on CONSULT-II screen.
If “INCMP” is displayed, “Idle Air Volume Learning” will not be
carried out successfully. In this case, find the cause of the
problem by referring to the NOTE below.
10. Rev up the engine two or three times. Make sure that idle
speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625±50 rpm
A/T: 700±50 rpm (in “P” or “N” position)
Ignition timing M/T: 15°±5° BTDC
A/T: 15°±5° BTDC (in “P” or “N” position)
Without CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Turn ignition switch “OFF” and wait at least 10 seconds.
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic “PRE-CONDITIONING”
(previously mentioned) are in good order.
5. Turn ignition switch “OFF” and wait at least 10 seconds.
6. Start the engine and let it idle for at least 30 seconds.
7. Disconnect throttle position sensor harness connector (brown),
then reconnect it within 5 seconds.
8. Wait 20 seconds.
9. Make sure that idle speed is within specifications. If not, the
result will be incomplete. In this case, find the cause of the
problem by referring to the NOTE below.
10. Rev up the engine two or three times. Make sure that idle
speed and ignition timing are within specifications.
ITEM SPECIFICATION
Idle speed M/T: 625±50 rpm
A/T: 700±50 rpm (in “P” or “N” position)
Ignition timing M/T: 15°±5° BTDC
A/T: 15°±5° BTDC (in “P” or “N” position)
NOTE:
If idle air volume learning cannot be performed successfully,
proceed as follows:
1) Check that throttle valve is fully closed.
2) Check PCV valve operation.
3) Check that downstream of throttle valve is free from air
leakage.
4) Adjust closed throttle position switch and reset memory.
(Refer to Basic Inspection, EC-111.)
5) When the above three items check out OK, engine component
parts and their installation condition are questionable.
Check and eliminate the cause of the problem.
It is useful to perform “TROUBLE DIAGNOSIS — SPECIFICATION
VALUE”, EC-143.
6) If any of the following conditions occur after the engine
has started, eliminate the cause of the problem and perform
“Idle air volume learning” all over again:
I Engine stalls.
I Erroneous idle.
I Blown fuses related to the IACV-AAC valve system.
My SES light comes back on still, there is nothing wrong with the idle, and it idles up when first start and goes down when the car warms up, and i hear it when i turn the key to the on position. So I dont think it is any fuses or mechanical problems. I guess ill take it in to nissan.
I wouldn't bump the timing up to 20 deg on 91 octane gas in hot SoCAL summers. 3.5s already love to ping as it is, advancing the timnig that far is not going to get you nowhere but just harm the engine in the long run. Who worked on your car ? The reason why your car idled higher is you bent the throttle plates on the throttle body and adjusting the base idle via Consult is not good, you will have WOT problems with your bent throttle plate. I know everyone over at Woodfield. 10WHP from 2 deg timing is a little too much, I gained 6WHP from it on my 01. Your friend drive a 01 Aniversary or a 3.5L auto Max ? I think I know which one might have worked on you car. Eighter way they all know me there.
Senior Member
Joined: Aug 2000
Posts: 339
So xfirepwr1, what was the solution to your high idle?
I had the same problem(idled ~1,000 rpms) and right now I am waiting for a new ECU to be installed under Fed. Emissions warranty. I tried everything I could think of before resorting to the dealer. I kept on getting a code P0507...
"High RPM at idle". Thanks.
I had the same problem(idled ~1,000 rpms) and right now I am waiting for a new ECU to be installed under Fed. Emissions warranty. I tried everything I could think of before resorting to the dealer. I kept on getting a code P0507...
"High RPM at idle". Thanks.
Donating Maxima.org Member
Joined: Oct 2001
Posts: 1,875
I did the timing advanced on my 2k2 (I believe i was one of the first).
It did increase midrange response, however, knowing full well that the VQ35DE motor is prone to pinging, i dont think this should be done anymore.
It did increase midrange response, however, knowing full well that the VQ35DE motor is prone to pinging, i dont think this should be done anymore.
Maxima Pilot
Joined: Oct 2001
Posts: 1,467
From: Beaverton, Oregon
Originally Posted by MiniRX7
I did the timing advanced on my 2k2 (I believe i was one of the first)
My ECU setting is still good at +17 degrees....nothing's changed -and I still dont ping at all with Chevron 92 octane -the only fuel I put into my car
Did u see the post above from BlackBIRD on gaining 6hp with this? Good to know my old butt dyno does not lie.....
I Miss My Maxima
Joined: Aug 2002
Posts: 585
From: Arlington, TX
Did not experience any idle problems after cleaning the TB on my 2k2. Used Gumout Induction cleaner (don't use carb cleaner, please!). The ETC system is very sensitive, and if you use excessive force when you move the throttle plates, you can bend the shaft or damage the ETC motor. Just be cautious and careful and do not force anything to move, and do NOT attempt to start or run the engine with the MAF/intake tubing off!
IAC reset procedure for 2k2 is accomplished slightly differently (involves stepping on the gas and counting SES flashes?), and should only be done after ECU reset procedure and TPS position learn procedures, at least that's how I have it down in my notes.
At stock timing on 93 octane I get no ping but was getting slight pinging under load at +17 so it's back to stock for now.
IAC reset procedure for 2k2 is accomplished slightly differently (involves stepping on the gas and counting SES flashes?), and should only be done after ECU reset procedure and TPS position learn procedures, at least that's how I have it down in my notes.
At stock timing on 93 octane I get no ping but was getting slight pinging under load at +17 so it's back to stock for now.
Donating Maxima.org Member
Joined: Oct 2001
Posts: 1,875
Originally Posted by Galo
You were indeed one of the first and moi one of the 'fast followers'.
My ECU setting is still good at +17 degrees....nothing's changed -and I still dont ping at all with Chevron 92 octane -the only fuel I put into my car
Did u see the post above from BlackBIRD on gaining 6hp with this? Good to know my old butt dyno does not lie.....
My ECU setting is still good at +17 degrees....nothing's changed -and I still dont ping at all with Chevron 92 octane -the only fuel I put into my car
Did u see the post above from BlackBIRD on gaining 6hp with this? Good to know my old butt dyno does not lie.....
Glad you remembered. However you are running a vq30de. I have noticed that alot of 2k2/2k3 maximas/altimas are pinging even with no mods. I doubt that advancing it will help it any more.
My dealer noted my car is pinging as well with my intake..
IAC learning procedure applies to 00-01s too dude.... need a Consult, and by doing so you can advance your timing total to 20 deg Max from 15 stock. Some cars come from the factory with timing retared. I noticed my friend was at 13 deg stock, and we bumped it up to 18 deg for now. Anything above that don't make any more power, just more prone to detonation. Even thou I have not heard my car detonate with 93 octane and 20deg. No difference in power other than just a little bit more of throttle response down in the low RPMs. I have dynoed and messed with Consult, Wideband 02 and S-AFCII all at the same time to make sure my car is dialed in right.
Originally Posted by BlackBIRDVQ
IAC learning procedure applies to 00-01s too dude.... need a Consult, and by doing so you can advance your timing total to 20 deg Max from 15 stock. Some cars come from the factory with timing retared. I noticed my friend was at 13 deg stock, and we bumped it up to 18 deg for now. Anything above that don't make any more power, just more prone to detonation. Even thou I have not heard my car detonate with 93 octane and 20deg. No difference in power other than just a little bit more of throttle response down in the low RPMs. I have dynoed and messed with Consult, Wideband 02 and S-AFCII all at the same time to make sure my car is dialed in right.
I could have sworn we were talking about the manual IAC learning procedure for the electronic/drive by wire cars, which are '02-'03 only...(well, and new model Max's). Maybe I misunderstood him...
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