Possible Causes
| Possible Causes |
|---|
| RESTRICTED AIR FILTER |
| DAMAGED OR RESTRICTED INLET FRESH AIR DUCT |
| DAMAGED OR RESTRICTED TURBO PLUMBING |
| HIGH RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT |
| HIGH RESISTANCE IN THE IAP SIGNAL CIRCUIT |
| HIGH RESISTANCE IN THE SENSOR GROUND CIRCUIT |
| MASS AIR FLOW SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .