like the title says, sometimes i start it and everything is peachy. sometimes it takes a few minutes of being jerky at 2500 rpm. when it gets jerky, i clutch in, let the car roll a bit, shift into a higher gear and wait til it reaches 2500. after the 5 or so minutes, everything is perfect throughout the whole powerband.

i'm not sure if jerky is a descriptive enough word. it kinda surges, or bucks... cant think of any other words to describe.

any ideas? im thinking maybe dirty injectors?

 

Need a full power modification list first (or say stock...). secondly it can be multiple things. You need to be more descriptive if you want help.

It could be injectors, dying ecu, incorrectly tuned, TPS needs to be readjusted.....

 

its stock, all its got is a short ram air intake and a PFS exhaust.

 

ive noticed mine jerking at 2500-2800 rpm under normal acceleration at random. its just a second then back to normal.

 

most likely grounds, if you don't have a ground wire from the negative battery terminal to the body add one. Also check the one on the firewall to the UIM, the plastic piece there tends to melt.

 

See post #42 and subsequent on this forum thread.

 

Had the same issue!!! Redid my ground and added another to the frame. Smother idle and no bump at 2500 ish rpms

 

okay, im gonna try to add another ground. i hope it works.