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Problems diagnosing and fixing MAF code P0102
I have a 2001 Regal GS with 105K. It starts, idles and runs fine if I drive it like a Grandpa, but if I try to accelerate even 1/3 or more throttle, it surges and misses. It keeps giving a P0102 (Mass Air Flow A Circuit Low), sometimes less than a minute from resetting it, and other times after 5-10 minutes of driving. I've tried 5 MAF's, two of which were new, and one from a known good running L67 motor. Plugs are new and wires are good. The power and ground wire of the connector test good, but I'm not able to test the signal wire. I've also checked over all vacuum lines and hoses, and pressure tested the exhaust for a plugged cat. I even tried another TPS.
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98 Regal GS - 3" DP & Cat back, 9" K&N CIA in FW, Plog, 3.5", 180* Canned tune. 14.65 at 96.9mph, w/2.37 60ft. on G-Timer @ 4500 elev. @ 51*.
87 Buick Regal Limited - 12.04 @ 115 - Purchased new and sold it after 23 years and 115,000 miles.
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