OBD Guide

P00C6

Fuel Rail Pressure Too Low - Engine Cranking Bank 1

P00C6 is an OBD-II diagnostic trouble code meaning: Fuel Rail Pressure Too Low - Engine Cranking Bank 1. Common causes: high pressure fuel pump malfunction, clogged fuel filter. Estimated repair cost: $56–333.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–333 (est.)

Symptoms

  • Difficulty starting the engine
  • The engine stalls immediately after starting
  • Unstable idling after startup
  • Power Loss

Causes

  • High pressure fuel pump malfunction
  • Clogged fuel filter
  • Fuel pressure regulator malfunction
  • Leak in fuel rail or lines
  • Problems with the fuel rail pressure sensor
  • Low fuel quality
  • Pump pressure reducing valve malfunction

How to Fix

  1. Check the pressure in the fuel rail using a pressure gauge
  2. Inspect fuel lines for leaks
  3. Check the operation of the high pressure fuel pump
  4. Replace the fuel filter (if the regulations were missed)
  5. Diagnose the fuel pressure regulator
  6. Check the readings of the rail pressure sensor
  7. If necessary, replace faulty components

Related codes

Error P00C6 by Vehicle Brand

FAQ

What does the P00C6 code mean?

P00C6 is an OBD-II diagnostic trouble code that indicates: Fuel Rail Pressure Too Low - Engine Cranking Bank 1

What causes a P00C6 error code?

The most common causes of P00C6 include: High pressure fuel pump malfunction; Clogged fuel filter; Fuel pressure regulator malfunction; Leak in fuel rail or lines.

How do I fix a P00C6 diagnostic trouble code?

To fix P00C6: Check the pressure in the fuel rail using a pressure gauge. Inspect fuel lines for leaks. Check the operation of the high pressure fuel pump. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P00C6?

Limited driving only, diagnose soon

How much does it cost to fix P00C6?

The estimated repair cost for P00C6 is $56–333. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat