OBD Guide

P00C8

Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Problems starting the engine
  • Power reduction
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Broken or damaged wiring harness
  • Fuel pressure regulator solenoid malfunction
  • Problems with the engine control unit (ECU)
  • Short circuit in the circuit
  • Poor contact in connectors

How to Fix

  1. Check the wiring harness for damage
  2. Check connectors for corrosion or poor contact
  3. Check the resistance of the fuel pressure regulator solenoid
  4. Check voltage on control circuit
  5. Replace solenoid or wiring harness if necessary
  6. Reset error and test drive

Related codes

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