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Old 06-16-2010   #4
street_carnage
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Join Date: Jun 2010
Posts: 9


Re: code 34 and 36 diagnostics...

found this..

34 MAP (Manifold Air Pressure) sensor voltage high - pressure high/vacuum low OR MAF (Mass Air Flow) signal high - flow low.
Code 34 ~ (1985-1990) Clean the throttle body. Check MAF connections. Replace MAF relay. Replace MAF Sensor. Possible ECM failure.

36 MAF (Mass Air Flow) sensor burn-off circuit failure OR fault in direct ignition system OR Missing pulses in electronic spark timing signal.
Code 36 ~ Check connections at MAF, MAF relay and MAF Burn off relay. Check resistance of MAF relay and MAF burnoff relay with digital Ohm meter. replace if less than 18 Ohms. Possible ECM failure.
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