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

Code 33 and 34... The problems are back. Please help

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Old Aug 31, 2004 | 09:40 AM
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Default Code 33 and 34... The problems are back. Please help

Ok I had a post up before and it explained how my fuel pump was replaced and then I replaced my airflow sensor ($200). All my problems went away. The thing ran like a champ for about a week then it wouldnt stay idle when I went to turn it on one day. I am now reading that there are numerous other causes than just the airflow meter going bad, and I believe its what caused my new airlflow meter to not work anymore. Does anyone know of a list of things I could check? Should I get a new MAF now before i start testing or should I wait? Please someone help me.. codes 33 and 34 will not go away. And another thing...is it bad that my oil pressure drops down to 18 while idle..? Thanks in advance.
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Old Aug 31, 2004 | 09:48 AM
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Since you have an 85, there are no relays for you to replace on the firewall. Though I bet someone here says you need to.

85 is different because it has a burnoff module buried in the passenger side dash, and its fairly expensive because its unique to 85. If you replaced the MAF already, this is probably whats causing the codes, unless the wiring has failed from the MAF to the ECM.

The oil pressure is unrelated, but it depends on what temperature (oil) youre seeing the 18psi. If we're talking 225, thats normal. If its 195, it shouldnt drop below 30 or so.
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Old Aug 31, 2004 | 11:00 AM
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Thank you very much. When I bought the car.. there was a spare burn off module in one of the rear compartments. I took it out..but i kept it. I opened it up and smelled inside and it was burnt. So im assuming there was problem with this before. My car has 64k and its gonna be going on its 3rd burnoff module...! What would cause them to go bad? Where exactly in the dash is the module? thanks again
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