Need help diagnosing P0100 trouble code
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Need help diagnosing P0100 trouble code Hey all, I have a 1996 Firebird Formula I'm trying to diagnose a P0100 trouble code on.
Had a no-start condition that was solved by replacing the ignition coil. Now I've got a P0100 Isufficient MAF sensor activity code that I can't figure out.
Currently, the car seems to run better in speed-density mode with the harness unplugged. With the harness plugged in, my scanner is reading the MAF at 15 grams/second. Running in SD, I'm getting 2.36 gm/s.
Here's the diagnostics I've done:
1. Replaced the Delphi MAF with a Blue Streak MAF with little improvement.
2. I have 5V with key on between the yellow and black/white wires.
3. I have 12V with between the pink and black/white wires.
4. I have continuity between the sensor harness and PCM harness.
Any ideas? Thought about buying a remanufactured AC Delco MAF to see if that helps. I don't THINK it's an issue with the harness or PCM, but I'm not sure. Any ideas are appreciated!
Had a no-start condition that was solved by replacing the ignition coil. Now I've got a P0100 Isufficient MAF sensor activity code that I can't figure out.
Currently, the car seems to run better in speed-density mode with the harness unplugged. With the harness plugged in, my scanner is reading the MAF at 15 grams/second. Running in SD, I'm getting 2.36 gm/s.
Here's the diagnostics I've done:
1. Replaced the Delphi MAF with a Blue Streak MAF with little improvement.
2. I have 5V with key on between the yellow and black/white wires.
3. I have 12V with between the pink and black/white wires.
4. I have continuity between the sensor harness and PCM harness.
Any ideas? Thought about buying a remanufactured AC Delco MAF to see if that helps. I don't THINK it's an issue with the harness or PCM, but I'm not sure. Any ideas are appreciated!
