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2002 Dodge Ram 1500 ST 4.7L Poor Idle Quality
Truck came in with rough idle problem. Checked PCM codes and obtained P1391 CKP/CMP sensor signal loss. We had a known good camshaft and crankshaft position sensors handy and we installed them. The problem persisted. Both sensors work by obtaining 5volt...
FIX posted 6/12/2020
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Related Documents & Media | VIN | 1D7HA18N22 |
| Engine | 4.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality |
| Occurs | Always |
Trouble Codes
| P1391 | CKP Or CMP Sensor Signal Intermittent |
Message Closed
Vehicle Data
2002 Dodge Ram 1500 ST
| VIN | 1D7HA18N22 |
| Engine | 4.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality |
| Occurs | Always |
Trouble Codes
| P1391 | CKP Or CMP Sensor Signal Intermittent |
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