Don't know whats going on.

[neo110503]

Ok so recently my car has been all over the place with its idle it will go from 500 all the way up to 2k. it also jumps and bucks while im driving. it doesnt always happen which is weird. i replaced the wires and plugs and the IAC. any help would be awesome

 

[BELL]

throttle posistion sensor, check for .91v at closed and around 3.9-4.0v WOT or somthin like that. watch for dead spots

 

[neo110503]

wot?

 

[Shawneebear93]

wot?

Wide Open Throttle.

 

[jgt58]

yep a TPS problem if your IAC sensor has been replaced