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Old Sep 14, 2007 | 07:53 AM
  #1  
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ECU question

Ok so I already added a Fujita CAI, and have on the way phenolic manifold spacers, cattman y-pipe, remus mufflers, and a shop is fabing up 2.5" mandrel bent piping from the y-pipe to the mufflers.

Will my ECU "learn" the new mods and compensate or am I going to have to do something?

Flash the ECU w/ this procedure http://maxima.theowensfamily.com/ecu.asp ?
Disconnect the battery for an hour or so?
Something else?

Please advise.
Old Sep 14, 2007 | 08:17 AM
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I have Phenolic Spacers and CAI with no issues. I am hoping the Y-Pipe doesn't put me over the edge...
Old Sep 14, 2007 | 08:28 AM
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I think going to have to send my ECU to Technosquare?

They can't give you a core swap can they? Just worried about down time even though it looks like it may only be 3 days, but that 3 days I'm going to be stuck for a car.

Last edited by JG1; Sep 14, 2007 at 08:46 AM.
Old Sep 14, 2007 | 08:28 AM
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Originally Posted by Hilbe
I have Phenolic Spacers and CAI with no issues. I am hoping the Y-Pipe doesn't put me over the edge...

I'm scared I'm going to lose power w/ all these mods
Old Sep 14, 2007 | 09:03 AM
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BTW, the place I'm taking my car thats fabing the exhaust, Performance Automotive, their card lists Computer Chipping & Flashing.

Think it's worthwhile to inquire about the ECU w/ them or don't even waste my time?
Old Sep 14, 2007 | 10:09 AM
  #6  
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Only TechnoSquare can do our reflash right now, but it doesn't hurt to ask.
Old Sep 14, 2007 | 10:23 AM
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UTEC can also work in these cars.
Old Sep 14, 2007 | 01:33 PM
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What about doing the S-AFC II or the V-AFC and taking it to a tuning shop to be Dyno tuned? Doesn't that circumvent the ECU?

Joshua
Old Sep 14, 2007 | 03:27 PM
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Originally Posted by philoforlife
What about doing the S-AFC II or the V-AFC and taking it to a tuning shop to be Dyno tuned? Doesn't that circumvent the ECU?

Joshua
Yeah good question ??
Old Sep 14, 2007 | 03:38 PM
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Nope . . . . . It does not.
Old Sep 14, 2007 | 05:06 PM
  #11  
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Originally Posted by NmexMAX
Nope . . . . . It does not.
What do you mean "It does not?" Many members have this done. It controls the air/fuel mixture...I believe timing as well. Are you sure about this? Or is ours somehow the only car this does not work on?

Joshua
Old Sep 14, 2007 | 06:00 PM
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Originally Posted by philoforlife
What do you mean "It does not?" Many members have this done. It controls the air/fuel mixture...I believe timing as well. Are you sure about this? Or is ours somehow the only car this does not work on?

Joshua
Explain to me EXACTLY what you know about both the TS reflash and an AFC.
Old Sep 14, 2007 | 06:14 PM
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Pulls up a chair for this one!!
Old Sep 14, 2007 | 06:20 PM
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Lol... dont argue w/ a man w/ 15k+ post hahaah nmex know what he is talking about...

he is what we call a maxima-god
Old Sep 14, 2007 | 06:32 PM
  #15  
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Originally Posted by Fastmax05
Lol... dont argue w/ a man w/ 15k+ post hahaah nmex know what he is talking about...

he is what we call a maxima-god
I'm not arguing. I'm assuming, then, that the S-AFC does nothing for the 6th gen maxima?

I thought some people had them on their cars. My apologies.

Joshua

Last edited by philoforlife; Sep 14, 2007 at 06:36 PM.
Old Sep 14, 2007 | 06:47 PM
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My apologies first and foremost. I mislead in the fact that I stated that the AFC and TS do nothing alike (with respect to my post, no it does not).

AFC does one item directly that TS does and another one directly. But in order to accomplish that indirect affect, one needs to know what one is doing.
Old Sep 14, 2007 | 08:14 PM
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Question about TS regarding a core swap:

Q&A
"Can I get a spare ECU/ do you have a core swap program?
No. The current Nissan models have an immobilizer chip build in each car with its own key for thief prevention. This means that you CAN NOT get another ECU and run your car. It will not start. However, we can duplicate your immobilizer into another ECU."


Does this mean they can ship you a ECU already tuned since they can duplicate the immobilizer?

.

Last edited by JG1; Sep 14, 2007 at 08:17 PM.
Old Sep 14, 2007 | 08:20 PM
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You will need to go to the dealer and pay 125$ for a 'rechip' in which case they reprogram the ECU you bought (core from a junkyard) with your particular key.
Old Sep 14, 2007 | 10:14 PM
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Alright...here is what I have come down to.

If I did not buy the TechnoSquare ECU a while ago, then I am sure that I would have bought the U-TEC that is available for the 350Z...I think RHMax has it or a member from the other org named, "Nietsche" (spelling?)

IMO, if you are looking for AFC, then you do some speeding, maybe not topping it out once in a while, but I'm sure you are curious about doing it. (you=everyone for the most part)

Main thing that TS can do that any "normal" AFC can't, is removing the speed governor and raising your rev. limit.

BUT, if you get the stand-alone ECU ("all-in-one"), then you have the true "best of both worlds."

That is the conclusion that I have came to.

Oh, and pricing:

TS Flash=$495 + $20 overnight and + $30 on way back

AFC= let's say avg. of $250
with this, you can either buy a harness for $250ish or get it spliced
in for about $100-$200, but keep in mind that this is pretty much
"permanent," and if you get a harness for $250ish, then it's plug n'
play and you can also take it out for whatever reason and get rid of
it without hacking into your stock harness.

SO, let's say about $550 for the TS, and another $350-$550 for an AFC, totaling to about $900-$1100 for "the best of both worlds," while being a PITA!!!!!!!!! For me, the ECU cost about $800 because I had to get a spare ECU, but then the current E-manage that I got cost me less, so it about evened out. That price is a rough area for the both of those put together.

NOW, simply said...a U-TEC costs about $900 brand new, and there are people selling this s!@# on 350Z for hundreds less....................so now you do the math! (you=once again, everyone)

All I know, is that in the future, I am getting a stand-alone and none of this splicing and dicing and spare harnesses and bull****! Not to bash anyone that has one or is thinking about it, but just giving my .02 in!



Hope this helped some people out...A LOT lol

dan
Old Sep 14, 2007 | 10:24 PM
  #20  
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Standalones are horrendously difficult to satisfy.
Old Sep 14, 2007 | 11:12 PM
  #21  
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Originally Posted by JG1
Question about TS regarding a core swap:

Q&A
"Can I get a spare ECU/ do you have a core swap program?
No. The current Nissan models have an immobilizer chip build in each car with its own key for thief prevention. This means that you CAN NOT get another ECU and run your car. It will not start. However, we can duplicate your immobilizer into another ECU."


Does this mean they can ship you a ECU already tuned since they can duplicate the immobilizer?

.

Not core swap, only a loaner if they need time to crack your ECU. From what I remember, each year Max with different configuration has different programs; for example 04 with 5AT isn't the same with 05 with 5AT, or TCS vs no TCS, VDC, etc. Plus your car's ECU has our car's info which TS will not change. In fact they only make changes in a few areas.

There's no point to duplicate if they have a program for you and can get your ECU back to you in a couple of days.
Old Sep 14, 2007 | 11:27 PM
  #22  
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Originally Posted by !PrjctMax!
Alright...here is what I have come down to.

If I did not buy the TechnoSquare ECU a while ago, then I am sure that I would have bought the U-TEC that is available for the 350Z...I think RHMax has it or a member from the other org named, "Nietsche" (spelling?)

IMO, if you are looking for AFC, then you do some speeding, maybe not topping it out once in a while, but I'm sure you are curious about doing it. (you=everyone for the most part)

Main thing that TS can do that any "normal" AFC can't, is removing the speed governor and raising your rev. limit.

BUT, if you get the stand-alone ECU ("all-in-one"), then you have the true "best of both worlds."

That is the conclusion that I have came to.

Oh, and pricing:

TS Flash=$495 + $20 overnight and + $30 on way back

AFC= let's say avg. of $250
with this, you can either buy a harness for $250ish or get it spliced
in for about $100-$200, but keep in mind that this is pretty much
"permanent," and if you get a harness for $250ish, then it's plug n'
play and you can also take it out for whatever reason and get rid of
it without hacking into your stock harness.

SO, let's say about $550 for the TS, and another $350-$550 for an AFC, totaling to about $900-$1100 for "the best of both worlds," while being a PITA!!!!!!!!! For me, the ECU cost about $800 because I had to get a spare ECU, but then the current E-manage that I got cost me less, so it about evened out. That price is a rough area for the both of those put together.

NOW, simply said...a U-TEC costs about $900 brand new, and there are people selling this s!@# on 350Z for hundreds less....................so now you do the math! (you=once again, everyone)

All I know, is that in the future, I am getting a stand-alone and none of this splicing and dicing and spare harnesses and bull****! Not to bash anyone that has one or is thinking about it, but just giving my .02 in!



Hope this helped some people out...A LOT lol

dan
That almost made sense.

Piggybacks, like the more basic like SAFC, Neo or more advance like UTEC, can be tuned by you - IF YOU KNOW WHAT YOU'RE DOING -, while stand alone (like TS) can't. While UTEC actually remap the AFR, the more basic models simply add or subtract fuel, so the variation in air density and temperature can effect your tuning.
Old Sep 14, 2007 | 11:33 PM
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MAF compensates for AD. That's what it's for.
Old Sep 14, 2007 | 11:43 PM
  #24  
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Originally Posted by NmexMAX
MAF compensates for AD. That's what it's for.
But the percentages remain fixed.
Old Sep 14, 2007 | 11:48 PM
  #25  
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Originally Posted by RHMax
But the percentages remain fixed.
AFR remains the same, due to V from MAF sensor. I have data to prove it, both from an A33B and an A34.
Old Sep 15, 2007 | 04:44 AM
  #26  
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Originally Posted by RHMax
That almost made sense.

Piggybacks, like the more basic like SAFC, Neo or more advance like UTEC, can be tuned by you - IF YOU KNOW WHAT YOU'RE DOING -, while stand alone (like TS) can't. While UTEC actually remap the AFR, the more basic models simply add or subtract fuel, so the variation in air density and temperature can effect your tuning.
!!! I typed that up after getting my e-manage in last night, so leave me alone yet again! lol
Old Sep 15, 2007 | 01:17 PM
  #27  
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Originally Posted by RHMax

Piggybacks, like the more basic like SAFC, Neo or more advance like UTEC,
It's the same exact thing as a SAFC. Never should it be comapred to UTEC, ever.

can be tuned by you - IF YOU KNOW WHAT YOU'RE DOING -, while stand alone (like TS) can't. While UTEC actually remap the AFR, the more basic models simply add or subtract fuel, so the variation in air density and temperature can effect your tuning.
Actually, you're referring to something such as 'hard tuning'. Where you dial in a value, and it will remain that value no mantter what. Whereas an EMU you can dial in a vlaue, but it's not a 'hard' value.

Explanation: Hard timing is dialed in, say +40, and it will do + 40 no matter what(i.e. readings from KS/MAF etc, they are totally ignored example: UTEC), vs a + value(i.e. EMU) does a + value, where X(+value you dial in) will be in addition to whatever value the ECU has preset, so if the ECU says 25, and you add +15, you get 40.

That is the safer version since it will use readings from KS/MAF wrt:engine knock/ping etc.

Old Sep 15, 2007 | 08:21 PM
  #28  
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Originally Posted by JG1
Question about TS regarding a core swap:

Q&A
"Can I get a spare ECU/ do you have a core swap program?
No. The current Nissan models have an immobilizer chip build in each car with its own key for thief prevention. This means that you CAN NOT get another ECU and run your car. It will not start. However, we can duplicate your immobilizer into another ECU."

Does this mean they can ship you a ECU already tuned since they can duplicate the immobilizer?

.
They could but they don't. If you want to keep an OEM ECU for warranty purpose and a TS ECU, YOU have to find a spare ECU with the same program code and ship both to TS. They copy the immobilizer stuff to the spare (for $$$ and my VIN number was also cloned in the process). Then they reflash either ECU with the new program (~$495). If NISSAN has to reprogram your ECU, you loose the TS mod unless you swap back to the OEM ahead of time.

If you have a friend at NISSAN, they can plug in your spare ECU and sync the immobilizer code. They use the immobilizer key/code stored in a separate computer on your car called BCM. You then just send the spare ECU to TS.
Old Sep 20, 2007 | 09:58 PM
  #29  
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wuts with this ecu i hear everyone saying
i ordered an exhaust will this ecu stuff need to be dont to my car?
Old Sep 21, 2007 | 06:31 AM
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Originally Posted by maximak1d
wuts with this ecu i hear everyone saying
i ordered an exhaust will this ecu stuff need to be dont to my car?
Didn't read the thread did you? If so, you sure didn't comprehend anything in it.
Old Sep 21, 2007 | 08:53 AM
  #31  
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Originally Posted by maximak1d
wuts with this ecu i hear everyone saying
i ordered an exhaust will this ecu stuff need to be dont to my car?
Wow.

Joshua
Old Sep 21, 2007 | 09:03 AM
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Originally Posted by maximak1d
wuts with this ecu i hear everyone saying
i ordered an exhaust will this ecu stuff need to be dont to my car?

Old Sep 21, 2007 | 01:30 PM
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wuts wyth the nubs ai kip cing evrywere that caiunt aktuly rid wat waz alredi sed in tha EXACT THREAD?
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