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URGENT HELP NEEDED (logs included) Remove Text Formatting

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laserspeeddemon

20+ Year Contributor
6,716
66
Jul 26, 2002
Fredericksburg, Virginia
Last night I hit a patch of ice with my wife's car and wrecked. I took today off to get the car towed to my house, but I don't think I can fix it before tomorrow. And the Laser started to wig out about 2 weeks ago.

I NEED to get my car running tonight so I can get to work tomorrow.

Here's what happened. I was driving home from work when all of a sudden the car started to buck. Fuel trims went WAY rich and it spudders REALLY bad. I

Check engine light came on, I pulled the code.
Volume Air Flow Circuit Malfunction

I am using a GM-MAF with the ECMLink harness. I unpluged and repluged both connectors and I moved the ground to another spot with fresh metal exposed. I even tried another GM MAF (both are used, so that could still be the problem).The weird thing is the logs are showing airflow, but still complaining about a air flow failure.....

Anywho, logs are attached. The first one is with the originial MAF. The 2nd one is with the MAF I swapped in. I will stay up as late as it takes to get this car running. PLEASE, PLEASE help me. I feel like I maybe risking getting fired if I can't get home tomorrow.
 

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Two things are very weird to me. Your timing is way up at 40 degrees at idle but drops to 5-8 when you crack the throttle open. The o2 sesnor doesnt budge either. I dont know how this bad boy ever had any rev to it at all? Did it run great up to now or what event might have contributed to this problem?
 
Yes it ran GREAT!!!! Then I did a WOT at 24-ish psi and then is started freaking out. I'm trying to swap back over to a 1g MAS

I swapped an old 1g MAS, played around with the fuel trims a bit.

It seems it was a bad GM-MAF or the harness for the GM MAF. It is running decent now.

A/F is still a little lean after playing around in with the map, but the car is now idling, crusing and WOTing pretty good.
 
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