Misfiring?

[Brewster]

If you go from no throttle while cruising to a little bit of throttle, is it a little jerkey, or is it perfectly smooth. If it's jerkey, your TPS is either mis-adjusted, or bad.

hmm mine does this in lower gears.

 

[annoyingrob]

I would suggest you read the 2JZ TSRM on how to check, and calibrate your TPS then. They're VERY touchy.

 

[ForcedInduction]

A narrowband O2 is cheap.


You say you gapped the plugs to 30 thou, I would try lower, like 28 thou. My car never ran right if the plugs were greater then 28 thou.

You say the coils are good, but what about the connectors on the wires going to the coils? If they're damaged in ANY way (missing locking clips especially), replace all of them. Cost me $54cad for all 6 at the dealership.

If you go from no throttle while cruising to a little bit of throttle, is it a little jerkey, or is it perfectly smooth. If it's jerkey, your TPS is either mis-adjusted, or bad.

I paid $102 for my Bosch direct fit 02 sensor. Couldn't find a universal.

I just gapped my 3330's to .028 about 2 days ago with no positive result. The coils as well as the wires are brand new. Well it gets jerky because of the misfiring especially highway driving. When it doesn't misfire it's good.