P1391 Diagnostic Trouble Code Discussion for August 2025
CKP Or CMP Sensor Signal Intermittent
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| Help Request | Posted | |
| 2002 Dodge Ram 1500 ST 4.7L Surge, Cuts out, Stall VIN: 3D7HU18N32 P1391: Intermittent loss of CKP/CMP. ... surge and stall at times. scanned vehicle and found p1391 checked grounds and 5v @ both CMP and CKP... Customer replaced his own CKP and CMP sensors with OEM. Scoped vehicle and would like an opinion on the scope. |
August 18, 2025 |
