Thread: Help me get my car to run right thread.

I looked at my harness and didn't see the consult thing.....I wish I had it. I'm going to try replacing my knock sensor and my 02. Gonna check voltage to my coils. Also going to take my fuel pump out n see what iI got/get a walbarro and a fpr and gauge. After that ill go headgasket probably.

Car runs great until it warms up and enters closed loop? O2 sensor is FUBAR? That's my next best suggestion. I think you can test this theory by going WOT and/or above 5k rpm where it should leave closed loop and perform well again.

Those stray wires are from the MAF wire shielding. They shouldn't connect to anything on the MAF sensor end. They connect to ground on the ECU plug end.

Yes Ben when I get back to the upper rpms the car suddenly starts pulling again around 5k.

My money is on bad O2 sensor, or bad O2 sensor signal. I'm almost positive. I would certainly be looking in that direction next for your fix.

unplug the o2 completely, if thats your issue it should stop.. i've driven multiple cars without o2 sensors an they run fine.

I ran the car with the o2 unplugged but it ran pretty much exactly the same....

I'm still convinced it is a closed loop problem. Likely O2 sensor related, but I guess it could be something else.

Well I got a new one on the way so maybe it will help.

I'm constantly disconnecting my battery so I don't think my car wouuld run good with no o2 plugged in.. I dunno.

Checked fuel pump, have a walbarro, sock is fine. Tried sohc mars. Nothin. Replaced 02 . I hacked the wires on the new one but nothing. Did warm compresion test. All cylinders over 150.