I have had a low rpm stumble when i let the clutch out(car wants to stall if i dont rev it to about 1500). I have replaced plugs,coil,and wires.still have it. I also have a miss in high rpms every once in awhile.I am at a loss. Before i go replacing the poti i want to see if thats really the problem.Car just feels all out slow.

Thanks,Sean

 

Does it run rough at all RPM's or just the two mentioned?

If it's rough everywhere, it could be wires arcing.

Dan

 

checked all the wires and they are all ok. it seems to be a little rough all the way through.but more noticeable in the ones mentioned.

 

Did you check the wires at night in the dark? The arcing is normally just a pinhole, so you might miss it by just looking at the wire. You will see it arcing in the dark. Just a thought though.

Hope your problem is an easy fix.

Dan

 

the opti will usually feel like this..

Let your car warm up. for about 20 minutes. or until it starts missing.
romp on it some so it starts missing and stuff..
Then give it about 3/4 gas and watch the rpms climb.. and you'll feel quick jolts when it misses.. somewhere its not signaling for the spark plug to fire so you should feel that miss.

I say 3/4 gas so ur not distracted by the power or the exhaust note. Also less gas its less noticable.

I'd also suggest running auto tap or some data logger to see if your O2's blm's are fine.. and u can check for anything else not normal.