I decided to start a new thread; the old one seemed to fizzle out and had an embarrassing misspelling in the subject header! I'd really appreciate suggestions- I'm getting desperate to fix this.

 

'98 OBW 5-speed, 216K, 2.2 swapped about 5 years ago.

 

It has started doing a variety of things-

 

Sometimes bucks/ stalls on takeoff. Once in a great while stalls at idle, hot or cold. Sometimes loses power (all cylinders dead) while accelerating, then power comes back on. Sometimes light "trailer hitching" trace miss when cruising at a constant speed.

Sometimes it will run perfectly for an entire 45 minute trip.

No cel is on, no stored codes.

 

I put a scan gauge II on it- coolant temp reads out normal, TPS seems OK, it goes to closed loop OK, no out of range or erratic readings that I notice. It's hard to get a reading while it's doing it though- the scan gauge updates pretty slowly.

 

I tapped on the MAF. Plugged and unplugged all the connectors on the engine harness, wiggled wires with the engine on.

 

Any thoughts? Thanks in advance!

 

Nathan

Possibly bad gas?? A tank of gas that has some water in it, will cause these symptoms. Add some "dry gas," to the gas tank, maybe that will help. Can't hurt!

It finally threw a code- MAF sensor low. A good used MAF sensor solved it and it's been running fine for over a week now. Very relieved. Just thought I'd post this to help anyone who has the same symptom down the road.

 

Nathan