Question about 1999 Chevrolet Silverado 1500

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1991 chevrolet silverado truck engine hesitates, fuel injected. Gives me codes #42 and #44

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  • jose MONTANO Feb 18, 2009

    How do I fix a code #42 & #44 on a 1991 chevy truck

  • jose MONTANO Mar 02, 2009

    I found out that it was the gas filter that was causing my 1991 chevy truck to stall, so always start with the basics first.

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Trouble Code 44 indicates that the O2 sensor is showing a persistently high exhaust oxygen content (lean), despite the efforts of the ECM to increase ...
Code 42 : Electronic spark timing (EST) circuit fault

Posted on Feb 18, 2009

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Code 42 code 44 is o2 sensor votage high here is code 421991 chevrolet silverado truck engine hesitates, - 41922462

Posted on Feb 18, 2009

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