C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What is error code 34

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Old Aug 9, 2004 | 03:42 PM
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Default What is error code 34

1989 corvette zf6
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Old Aug 9, 2004 | 05:03 PM
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MAF sensor circuit.
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Old Aug 9, 2004 | 08:50 PM
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Essentially, the ECM saw an airflow that was too low for throttle position, or virtually no air flow at start up. Check power supply to the MAF - purple wire. Should have 12 volts with it running. If it does, sensing wire is probably shot and you need a new one. By chance, did you remove the screens?
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Old Aug 10, 2004 | 02:22 AM
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Yeah I had the screens and heat sink removed a while back.

Happened after a dissappointing day at the track. I missed a gear (I have excuses, heh) and had a "nitrous pop" and I checked the rear view and saw a huge puff of black smoke.

That was on the first run, and I had like 3 more. I didn't see the code until it was time for me to leave and the car ran somewhat OK on the way home.
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Old Aug 10, 2004 | 11:00 AM
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There have been some posts reporting that this performance enhancement along with a K & N air filter hastens the demise of the sensing wire. Hope that's not the case for you. Do check power, may be just the relay.
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