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1999 Jeep Cherokee Sport 4.0L MIL Lamp on
Hello Everyone. I have A Jeep here causing me fits. After about a 10 mile drive the MIL will set with a P1391. Vehicle came in with P1391 P0320 P0340. Backprobe ckp and cmp signals at pcm found ckp good and clean cmp very dirty not a good square wave at all. I...
FIX posted 8/27/2015
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Message Closed
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12 Replies Received
Related Documents & Media | VIN | 1J4FF68SXX |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P1391 | CKP Or CMP Sensor Signal Intermittent |
Message Closed
Vehicle Data
1999 Jeep Cherokee Sport
| VIN | 1J4FF68SXX |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| P1391 | CKP Or CMP Sensor Signal Intermittent |
Video