2008 duramax mass air flow sensor problems

This increase should be from 6-12 g/s at idle to 230 g/s or more at the time of the 1-2 shift. * A wide open throttle (WOT) acceleration from a stop should cause the MAF sensor g/s display on the scan tool to increase rapidly. Inspect for any vacuum leaks downstream of the MAF sensor. * A low minimum air rate through the sensor bore may cause this DTC to set at idle or during deceleration.

Then start with the cheapest, easiest repair procedures:Īn incorrectly routed harness-Inspect the harness of the MAF sensor in order to verify that it is not routed too close to the following components: Possible Solutions: The simplest thing to do is to reset the code and see if it comes back. Symptoms: You will likely not notice any serious drivability problems, although there may be symptoms. Other MAF sensor circuit DTC trouble codes are P0100, P0102, P0103, and P0104.

The PCM detects that the actual MAF sensor frequency signal is not within a predetermined range of the calculated MAF value for more than 4.0 seconds. P0101 - Mass Air Flow (MAF) Circuit Range/Performance Problemīasically this means that there is a problem with the Mass Air Flow (MAF) sensor or circuit.

2008 duramax mass air flow sensor problems