DTC P0271 Cadillac

Fuel Injector 4 Control Circuit High Input

Fuel Injector 4 Control Circuit High Input

Description

Engine started; system voltage from 8-18v, and the PCM detected a high voltage condition on the Fuel Injector 4 circuit for 30 seconds.

Cause and Solution

Fuel injector 4 connector is damaged or shorted
Fuel injector 4 control circuit is shorted to system power (B+)
Fuel injector 4 is damaged or it has failed

Video Guide

Duration: PT4M4S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P0271
  • Brand: Cadillac
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