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Fault Code P0635

Code meaning, symptoms, possible causes, part number, and estimated cost.

P0635

ECM/PCM Fuel Injector Control Circuit/Open - Row 1, Cylinder 4

Severity: High

This code indicates a fault in the fuel injector control circuit for cylinder 4 in bank 1, or that the circuit is open. The Electronic Control Unit (ECU) does not detect the expected voltage or current in this circuit.

Part Details

Part Name

Fuel Injector Circuit

Reference P/N (OEM)

N/A

General part number for this fault code — not necessarily for your specific vehicle

Estimated Cost

₪400 - ₪1200

Engine Location

Engine compartment

Symptoms

  • Check Engine Light on
  • Engine misfire
  • Loss of engine power
  • Fuel smell from exhaust

Possible Causes

  • 1Faulty Fuel Injector
  • 2Damaged wiring or short in injector circuit
  • 3Loose connector or corrosion
  • 4Engine Control Module (ECM/PCM) fault

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