I have a strange problem I can't figure out. As i gradually accelerate I get an odd stumble at 2500 rpm. It happens even in park if I gradually accelerate the throttle. Thinking I had a bad TPS, I spent the 90 bucks to replace it and still have the problem. Anyone ever experienced this? The timing appears OK and I donlt have a check engine light. It has to be a sensor...
Idle Stumble
- Thread starter tom1
- Start date
Zoom-Zoom03
Member
- :
- a fast one
tom1 said:
Do you have any mods done?
1st Gen said:
Really just all of a sudden. I've had the battery disconnected for a while as I have been repainting the car, so it may just be the ECU need to reset. Does not do it at startup when cold. Only after it reaches normal operating temp. I may need to pay a dealer to hook it to a computer. Just feels like a timing issue being fooled by a bad sensor.
I think the first things that I would try would be
As you said, reboot the ECU. Ive never heard of an ECU malfunctioning in this way but, that doesnt count for much.
Give it a little more time and see if it doesnt correct itself. Cursing at it during this process helps as well.
I would think that if it were a sensor, you would get a check engine light. What is your gas mileage like anyway?
Start with the cheapest components and begin a tune up. Clean the injectors, filters, plugs, rotor, wires, ect.
Its possible that you got a bad tank of gas too, maybe. Im just guessing at this point.
Good luck.
As you said, reboot the ECU. Ive never heard of an ECU malfunctioning in this way but, that doesnt count for much.
Give it a little more time and see if it doesnt correct itself. Cursing at it during this process helps as well.
I would think that if it were a sensor, you would get a check engine light. What is your gas mileage like anyway?
Start with the cheapest components and begin a tune up. Clean the injectors, filters, plugs, rotor, wires, ect.
Its possible that you got a bad tank of gas too, maybe. Im just guessing at this point.
Good luck.
i have that issue
the only thing they could think of was the iac motor. might be receiving a faulty signal. but they also said that that would pop ut a cell.
i being having this aswell for a while now and my car is turbo so that also was not the prob. accoring to the dealer.
if u find the prob plz let me no thx.
i also replaced the coil pack's and that help for a lil bit put it came back.
i have that same prob. as well i took it to the dealer and they did'nt find anything worng just cuz i was not getting a cel.tom1 said:
the only thing they could think of was the iac motor. might be receiving a faulty signal. but they also said that that would pop ut a cell.
i being having this aswell for a while now and my car is turbo so that also was not the prob. accoring to the dealer.
if u find the prob plz let me no thx.
i also replaced the coil pack's and that help for a lil bit put it came back.
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- 2006 Infiniti M
check all of your rubing for vac leaks, and try to run some fuel injector cleaner through the tank 
