Possible Causes
WARNING: This page is about a different car, the 2015 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| CURRENT PCM DTCS |
| CURRENT KEY FOB RELATED DTCS |
| RESTRICTED EXHAUST |
| ENGINE MECHANICAL |
| VACUUM LEAKS |
| CRACKED SPARK PLUG(S), CARBON TRACKING SPARK PLUG AND COIL |
| CARBON BUILDUP ON THROTTLE BODY |
| FUEL CONTAMINATION |
| FUEL DELIVERY |
| VALVE TIME OUT OF SPECIFICATION |
| FLEX PLATE (TARGET WHEEL) |
| CMP AIRGAP |
| CKP AIRGAP |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to the appropriate Diagnostics & Testing article in Engine Performance. For 1.4L Turbo, refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE . For 1.4L 16 valve, refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .