Diagnostic Aids

Inspect the following conditions:

• A low minimum air rate through the sensor bore may cause this DTC to set at idle or during deceleration. Inspect for any vacuum leaks downstream of the MAF sensor.
• Any contamination of the hot wire element of the MAF sensor may cause this DTC to set.
• A skewed or stuck MAP sensor.
• A skewed or stuck Throttle Position (TP) sensor 1 or TP sensor 2 may cause this DTC to set.
• A wide-open throttle acceleration from a stop should cause the MAF sensor g/s display on the scan tool to increase rapidly. This increase should be from 3-7 g/s at idle to 72 g/s or more at the time of the 1-2 shift. If the increase is not observed, inspect for a restriction in the induction system or the exhaust system.

If an intermittent condition exists, see INTERMITTENT CONDITIONS  under SELF-DIAGNOSTIC SYSTEM.