OBD II Fault Code

  • OBD II P2635

OBD-II Code Decreased engine performance is defined as a Fuel Pump "A" Low Flow/Performance

The Fuel Pump Control Module determines the required amount of fuel pressure to keep the engine running efficiently. It then commands the fuel pump to operate accordingly to maintain the required fuel pressure. If the Fuel Pump Module sees that the actual fuel pressure does not meet the commanded fuel pressure, code P2635 will set.

Decreased engine performance Symptoms

  • Decreased engine performance

Common Problems That Trigger the P2635 Code

  • Fuel pump control module failure
  • Fuel pump failure
  • Wiring issue

Common Repairs Needed for the P2635 Code

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