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2002 Dodge Ram 1500 ST 4.7L Surge, Cuts out, Stall
Posted to Chrysler Driveability on 8/18/2025 5 Replies

Vehicle came in running rough and will 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.

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car Vehicle Data

2002 Dodge Ram 1500 ST

VIN 3D7HU18N32
Engine4.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsSurge, Cuts Out, Stall
OccursAlways

Trouble Codes

P1391CKP Or CMP Sensor Signal Intermittent
Open Help Request

car Vehicle Data

2002 Dodge Ram 1500 ST

VIN 3D7HU18N32
Engine4.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsSurge, Cuts Out, Stall
OccursAlways

Trouble Codes

P1391CKP Or CMP Sensor Signal Intermittent