P0268 – Cylinder 3 Injector Circuit High

Description

The ECM detects high voltage in the injector circuit for cylinder 3.

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Symptoms

  • Rich mixture
  • Rough idle

Causes

  • Injector stuck
  • Wiring short
  • ECU fault

Diagnosis

  • Check injector voltage
  • Inspect harness

Repair

  • Replace injector
  • Repair wiring

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