Possible Causes
WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| VACUUM LEAK |
| RESTRICTION IN THE EXHAUST SYSTEM |
| INTERNAL ENGINE MECHANICAL COMPONENTS |
| RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT |
| RESISTANCE IN THE MAP SIGNAL CIRCUIT |
| RESISTANCE IN MAP SENSOR GROUND CIRCUIT |
| MAP SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to .