OBD Guide

P2B0C

Cold Start Cylinder 5 Injection Pulse Performance

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

Symptoms

  • Unstable engine operation when cold
  • Increased fuel consumption
  • Power dips
  • Difficulty starting in cold weather
  • Floating idle speed

Causes

  • Dirty or faulty injector of cylinder 5
  • Problems with the fuel pump or pressure regulator
  • Injector control circuit malfunction
  • Problems with the engine ECU
  • Low fuel quality

How to Fix

  1. Check the resistance of the injector of cylinder 5
  2. Test injector performance on a bench
  3. Check the pressure in the fuel rail
  4. Inspect the wiring harness to the injector
  5. Scan the ECU for other errors

Related codes

Error P2B0C by Vehicle Brand