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mass air sensor

  1. 87 iroc w/mass air sensor problems?

    Troubleshooting
    :confused:i have an 87 iroc with a 350 tpi. it all of the sudden started running rough and stalling out on me. It eventually wouldn't even start. It spit code 33 (mass air) so i replaced the mass air, and it still did nothing. I can unplug the mass air, and it will start right up, eventually...
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