2k Max is jumping at 1700rpm
10-13-2003, 01:49 PM
#1
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Join Date: Oct 2003
Posts: 84
2k Max is jumping at 1700rpm
My car is irratic when the rpm's are held at around 1700rpm. Is there a TSB for this, or is it normal. I never noticed it before, because my car is automatic and rarely sits in that rpm range. Anyone else have this problem? How did you fix it?
10-13-2003, 01:54 PM
#2
I'm not sure if the Fuel Cut TSB pertains to this, but according to the shop manual (viewed through alldatadiy.com), this is normal-
If the engine speed is above 1,800 rpm with no load (for example, in neutral and engine speed over 1,800 rpm ) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed. Fuel cut will operate until the engine speed reaches 1,500 rpm , then fuel cut is canceled.
NOTE: This function is different from deceleration control listed under "Multiport Fuel Injection (MFI) System".
If the engine speed is above 1,800 rpm with no load (for example, in neutral and engine speed over 1,800 rpm ) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed. Fuel cut will operate until the engine speed reaches 1,500 rpm , then fuel cut is canceled.
NOTE: This function is different from deceleration control listed under "Multiport Fuel Injection (MFI) System".
10-13-2003, 02:32 PM
#3
What do you mean erratic? If you slowly raise the rpm to 1700, it suddenly JUMPS to 2000+rpm, then you slightly let off and if falls below 1000rpm?
If so, sounds like the FUEL CUT issue, however I've had the TSB done and it's not really improved.
Autos will have the same problem, but unless they're in neutral or doing a brake stand, they won't notice it.
I find when I try and hold anywhere between 2000-3000rpm, the exhaust flap keeps popping open or slaming shut causing my RPM to bounce around. It takes a very slow gentle touch to hold a RPM now with the TSB done, where as before it was impossible.
If so, sounds like the FUEL CUT issue, however I've had the TSB done and it's not really improved.
Autos will have the same problem, but unless they're in neutral or doing a brake stand, they won't notice it.
I find when I try and hold anywhere between 2000-3000rpm, the exhaust flap keeps popping open or slaming shut causing my RPM to bounce around. It takes a very slow gentle touch to hold a RPM now with the TSB done, where as before it was impossible.
Originally Posted by ppetruccelli
My car is irratic when the rpm's are held at around 1700rpm. Is there a TSB for this, or is it normal. I never noticed it before, because my car is automatic and rarely sits in that rpm range. Anyone else have this problem? How did you fix it?
10-13-2003, 02:53 PM
#4
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Thread Starter
Join Date: Oct 2003
Posts: 84
This sounds like the condition my car is experiencing. It does it when it is in park, or in first gear on a flat surfuce (no load). Thanks for the help! It good to know that I don't have another problem
Originally Posted by spirilis
I'm not sure if the Fuel Cut TSB pertains to this, but according to the shop manual (viewed through alldatadiy.com), this is normal-
If the engine speed is above 1,800 rpm with no load (for example, in neutral and engine speed over 1,800 rpm ) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed. Fuel cut will operate until the engine speed reaches 1,500 rpm , then fuel cut is canceled.
NOTE: This function is different from deceleration control listed under "Multiport Fuel Injection (MFI) System".
If the engine speed is above 1,800 rpm with no load (for example, in neutral and engine speed over 1,800 rpm ) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed. Fuel cut will operate until the engine speed reaches 1,500 rpm , then fuel cut is canceled.
NOTE: This function is different from deceleration control listed under "Multiport Fuel Injection (MFI) System".
10-13-2003, 02:57 PM
#5
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Thread Starter
Join Date: Oct 2003
Posts: 84
I can actually hold my car at 1700, but then the rpms drop to 1000 and jump back up, contuniously repeating the same thing. From the last post, I believe that this is normal. Apparently, if the car has no load it is natural for it to do this (in park, neutral, or light load). Thanks for the info though!
Originally Posted by IceY2K1
What do you mean erratic? If you slowly raise the rpm to 1700, it suddenly JUMPS to 2000+rpm, then you slightly let off and if falls below 1000rpm?
If so, sounds like the FUEL CUT issue, however I've had the TSB done and it's not really improved.
Autos will have the same problem, but unless they're in neutral or doing a brake stand, they won't notice it.
I find when I try and hold anywhere between 2000-3000rpm, the exhaust flap keeps popping open or slaming shut causing my RPM to bounce around. It takes a very slow gentle touch to hold a RPM now with the TSB done, where as before it was impossible.
If so, sounds like the FUEL CUT issue, however I've had the TSB done and it's not really improved.
Autos will have the same problem, but unless they're in neutral or doing a brake stand, they won't notice it.
I find when I try and hold anywhere between 2000-3000rpm, the exhaust flap keeps popping open or slaming shut causing my RPM to bounce around. It takes a very slow gentle touch to hold a RPM now with the TSB done, where as before it was impossible.
10-13-2003, 03:20 PM
#6
You know....I've read that a dozen or so times before and NEVER associated the two.
I'm pretty sure that's been my "gripe" all along. Damn Nissan not wanting me to do clutch dumps.
Now to figure out a way to defeat it, since auto VQ30 and VQ35 guys launch below 1800rpms, but us manual VQ30 guys need those extra rpm to get out of the hole.
I'm pretty sure that's been my "gripe" all along. Damn Nissan not wanting me to do clutch dumps.
Now to figure out a way to defeat it, since auto VQ30 and VQ35 guys launch below 1800rpms, but us manual VQ30 guys need those extra rpm to get out of the hole.
Originally Posted by spirilis
I'm not sure if the Fuel Cut TSB pertains to this, but according to the shop manual (viewed through alldatadiy.com), this is normal-
If the engine speed is above 1,800 rpm with no load (for example, in neutral and engine speed over 1,800 rpm ) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed. Fuel cut will operate until the engine speed reaches 1,500 rpm , then fuel cut is canceled.
NOTE: This function is different from deceleration control listed under "Multiport Fuel Injection (MFI) System".
If the engine speed is above 1,800 rpm with no load (for example, in neutral and engine speed over 1,800 rpm ) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed. Fuel cut will operate until the engine speed reaches 1,500 rpm , then fuel cut is canceled.
NOTE: This function is different from deceleration control listed under "Multiport Fuel Injection (MFI) System".
10-13-2003, 05:02 PM
#7
Note the wording:
The exact time when the fuel is cut off varies based on engine speed.
I'd imagine if you rev it up fast, and then drop the clutch, you can still do it...
The exact time when the fuel is cut off varies based on engine speed.
I'd imagine if you rev it up fast, and then drop the clutch, you can still do it...
10-13-2003, 05:55 PM
#8
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Thread Starter
Join Date: Oct 2003
Posts: 84
My car is an auto, and I first noticed the issue after I changed the tranny oil and was running the car through the gears manually. When I held my car in first gear at low speeds it started jumping. But, I guess that's normal. Anyway, who spends their time cruising in first gear?
Originally Posted by spirilis
Note the wording:
The exact time when the fuel is cut off varies based on engine speed.
I'd imagine if you rev it up fast, and then drop the clutch, you can still do it...
The exact time when the fuel is cut off varies based on engine speed.
I'd imagine if you rev it up fast, and then drop the clutch, you can still do it...
10-14-2003, 03:06 AM
#11
on my previous 2k2 maxima (auto) i had this problem... first to second gear JUMPED about 2000 rpm's or more sometimes... after couple months
did something BUT when i was on the light... "for example.. full stop" lets say i did 100 miles or more and i have to stop on the light... my car JUMPED to the first gear like crazy or no reverse...
did something BUT when i was on the light... "for example.. full stop" lets say i did 100 miles or more and i have to stop on the light... my car JUMPED to the first gear like crazy or no reverse...
10-14-2003, 03:48 AM
#12
Originally Posted by ppetruccelli
That's to bad. Your missing out on what your car does best. GO FAST!
10-14-2003, 03:51 AM
#14
Originally Posted by GreekMaxima
on my previous 2k2 maxima (auto) i had this problem... first to second gear JUMPED about 2000 rpm's or more sometimes... after couple months
did something BUT when i was on the light... "for example.. full stop" lets say i did 100 miles or more and i have to stop on the light... my car JUMPED to the first gear like crazy or no reverse...
did something BUT when i was on the light... "for example.. full stop" lets say i did 100 miles or more and i have to stop on the light... my car JUMPED to the first gear like crazy or no reverse...
10-14-2003, 11:45 AM
#18
That doesn't help for a consistent launch or jumping the tree at the track.
Oh well, it's not a race or track car anyways.
Oh well, it's not a race or track car anyways.
Originally Posted by spirilis
Note the wording:
The exact time when the fuel is cut off varies based on engine speed.
I'd imagine if you rev it up fast, and then drop the clutch, you can still do it...
The exact time when the fuel is cut off varies based on engine speed.
I'd imagine if you rev it up fast, and then drop the clutch, you can still do it...
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