This is hard to explain but under partial throttle, lets say 30% in any gear (mainly happens in second and third), while holding the throttle steady just doesn't pull smooth. It doesn't buck or anything but it is noticable. It's almost like I'm barely feathering the throttle when I'm really holding it steady.

Any ideas? Pulling timing maybe? MAF sensor on its way out?

I also happens at full throttle, but it is not as significant.

Thanks,

Doug D

 

check yer air filter and clean throttle body.....i had the smae problem last week until i did that.

 

have you checked your ecu for codes? thats what mine feels like and i have a bad knock sensor.

 

if cleaning the tb and air filter dont pan out try the fuel filter

 

And if you need more ideas if the ECU doesn't throw any error codest, try checking the knock sensor and cleaning the EGR system.

 

New fuel filter, cleaned the TB and air filter. EGR system was cleaned when the MEVI was installed. I did replace the knock sensor about 8 months ago, could it have gone bad already?

Does anyone have the instructions to bypass it as a troubleshooting step?

Thanks for all the suggestions!

Doug D

 

Yeah, what he said! Anyone have it?

 

check the throttle cable.. i remember someone sayin' tightenin' it will make it better.. it could be loose...

 

Sounds like when you check ur ECU you will get an 04 03 (Throttle Position Sensor) fault. Apparently I need to learn more about mine cause its the only code that keeps popping up all the times I've reset it over the past few months in about 100 miles of driving for the last couple of days (half a damn tank- I am SOO MADDD!)