P2620 – Injector Control Circuit Range/Performance

Description

The ECM detects incorrect injector control circuit range or performance.

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Symptoms

  • Rough idle
  • Misfire
  • Poor acceleration

Causes

  • Faulty injector
  • Wiring issues
  • ECM fault

Diagnosis

  • Test injector
  • Inspect wiring
  • Check ECM

Repair

  • Replace injector
  • Repair wiring

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