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Home >> Chrysler >> 2009 >> PT Cruiser Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (DTCS P0171 To P0298) >> P0271-Fuel Injector 4 Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2009 Dodge Caliber. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
(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. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .