OBD Guide

P2B11

Cylinder 1 Injection Pulse Offset Exceeded Learning Limit

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

Symptoms

  • Rough engine idling
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine light comes on
  • Possible misfire in cylinder 1

Causes

  • Dirty or faulty injector of cylinder 1
  • Problems in the injector electrical circuit
  • Low fuel pressure
  • Engine control unit malfunction
  • Fuel system contamination

How to Fix

  1. Check the condition and performance of the cylinder 1 injector
  2. Check the electrical circuit of the injector for breaks and short circuits
  3. Check the fuel pressure in the system
  4. Clean the fuel system and injectors
  5. If necessary, replace the injector of cylinder 1

Related codes

Error P2B11 by Vehicle Brand