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Home >> Jeep >> 2007 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0271 To P0441 >> P0271-Fuel Injector 4 Circuit High >> Possible Causes

Possible Causes

Possible Causes 
INTERMITTENT DTC
(K14) INJECTOR 4 CONTROL CIRCUIT SHORTED TO VOLTAGE
(K14) INJECTOR 4 CONTROL CIRCUIT SHORTED TO (K343) FUSED Main OUTPUT 2 CIRCUIT
(K14) INJECTOR 4 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE
(K343) FUSED Main OUTPUT 2 CIRCUIT OPEN OR HIGH RESISTANCE
FUEL INJECTOR 4
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .