OBD Guide

P2C9D

Fuel Pressure Regulator C Exceeded Control Limits - Pressure Too High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Floating engine speed at idle
  • Increased fuel consumption
  • Difficulty starting the engine
  • Loss of power during acceleration
  • Check Engine Light Is On

Causes

  • Fuel pressure regulator fault C
  • Blockage in the fuel line
  • Fuel pump malfunction
  • Problems with wiring or connectors
  • Errors in the control unit software

How to Fix

  1. Check fuel pressure according to technical specifications
  2. Inspect the fuel line for kinks or blockages.
  3. Check the electrical circuit of the pressure regulator
  4. Replace faulty fuel pressure regulator
  5. If necessary, update the ECU software

Related codes

Error P2C9D by Vehicle Brand