Question about 1987 Pontiac Grand Am

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Trouble code 33 &44

Won't idle normally idles up and down

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Mr bulter is correct and i agree

Posted on Nov 01, 2011

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  • Pontiac Master
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Code 33 is MAF sensor (mass airflow sensor ) & 44 is lean exhaust mixture. My guess is 33 is causing 44.

Posted on Feb 05, 2009

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HellPoolHall
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SOURCE: Shuts down

I would check the intake air temperature sensor

Posted on Aug 05, 2008

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Truck idles very high (even after sitting for awhile). Any way to get it down?


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Why does my engine stall when idling bf falcon only does it some times ?


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Use an ohm meter to check your fuel injectors (with the engine running), by removing the wire from the injector. Two metal prongs sit inside the connector. Set the meter for the ohm setting. Touch the red meter lead to one contact and the black lead to the other prong. The ohm resistance number should be the about the same for all the injectors. If any injector reading shows a higher or lower than average number, the cause will be a defective injector, which will cause a rough idle. A zero reading will indicate a shorted injector, and must be replaced. You can also use a stethoscope or a long handled screwdriver to place on the injector head. You should be able to hear a clicking sound, telling you that the injector is "pulsing." No clicking sound indicates a dead injector.
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Powerful Autel MaxiDAS DS708 Multi language Diagnostic tool

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1 Answer

How to adjust the idling??


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