Question about 1999 Chevrolet 3500

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Code p0101 keeps coming up

Already replaced mass air flow whats next?

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Possably air leak between MAF and engine

Posted on Jan 30, 2009

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ISUZU TROOPER 3.2 V6 CODE P0101


P0101 ISUZU - Mass Air Flow Circuit Performancexicon.jpghttp://engine-codes.com/p0101_isuzu.htmlForum CodePossible causes- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor
Tech notes Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor

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P0101


P0101: MAF or VAF A Circuit Range/Perf

- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.

Feb 09, 2012 | 1999 Pontiac Grand Prix

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What are codes p0101 & p1153


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    2004 chevy 2500HD Truck OBD2 trouble code P0101


    Hello and welcome. this code P0101 indicates a problem with the mass air flow sensor. this usually requires the replacement of the mass air flow sensor. but there will be a few checks to be made before the sensor can be condemmed

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    1999 gmc yukon obd11 codes po101 po171 po174 po429 what could be the causes


    ok heres problem 101 is mass air flow sensor 171 running too rich 174 running too lean can find 429 but it the same lines i believe take out your mass air flow sensor and clean it check it connection if comes back on replace the mass air flow sensor

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    with the p0101 make sure you have a clean air filter. it can be bad spark plugs and or wires, or a leak in the air intake system

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