OBD Guide

P01C8

Fuel Rail/System Pressure - Too Low Bank 2

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Power Loss
  • Misfires
  • Unstable idle
  • Difficulty starting

Causes

  • Faulty fuel pump
  • Dirty fuel filter
  • Pressure regulator malfunction
  • Leaks in the fuel system
  • Fuel pressure sensor failure

How to Fix

  1. Check the fuel pressure (with a special pressure gauge)
  2. Inspect the fuel system for leaks
  3. Check the condition of the fuel filter
  4. Diagnose the operation of the fuel pump
  5. Check fuel pressure regulator
  6. Scan fuel pressure sensor readings

Related codes

Error P01C8 by Vehicle Brand