FixVault

Possible Causes

Possible Causes 
INTERMITTENT DTC
(K21) IAT SIGNAL CIRCUIT HIGH RESISTANCE
(K900) SENSOR GROUND CIRCUIT HIGH RESISTANCE
INTAKE AIR TEMPERATURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to *PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .