OBD Guide

P00C8

Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open

P00C8 is an OBD-II diagnostic trouble code meaning: Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open. Common causes: broken or damaged wiring harness, fuel pressure regulator solenoid malfunction. Estimated repair cost: $56–167.

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

Error P00C8 by Vehicle Brand

FAQ

What does the P00C8 code mean?

P00C8 is an OBD-II diagnostic trouble code that indicates: Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/Open

What causes a P00C8 error code?

The most common causes of P00C8 include: Broken or damaged wiring harness; Fuel pressure regulator solenoid malfunction; Problems with the engine control unit (ECU); Short circuit in the circuit.

How do I fix a P00C8 diagnostic trouble code?

To fix P00C8: Check the wiring harness for damage. Check connectors for corrosion or poor contact. Check the resistance of the fuel pressure regulator solenoid. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P00C8?

Limited driving only, diagnose soon

How much does it cost to fix P00C8?

The estimated repair cost for P00C8 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat