OBD Guide

P2B1B

Cylinder 6 Injection Pulse Offset Exceeded Learning Limit

P2B1B is an OBD-II diagnostic trouble code meaning: Cylinder 6 Injection Pulse Offset Exceeded Learning Limit. Common causes: malfunction of the injector of the 6th cylinder, fuel filter clogged. Estimated repair cost: $17–89.

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

Symptoms

  • Uneven engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Dips during acceleration
  • Check Engine Light Illuminates

Causes

  • Malfunction of the injector of the 6th cylinder
  • Fuel filter clogged
  • Problems with the fuel pump
  • Faulty wiring to the injector
  • Problems with the engine ECU

How to Fix

  1. Check the condition of the injector of the 6th cylinder
  2. Test the resistance and power of the injector
  3. Check the fuel filter and system pressure
  4. Inspect the wiring to the injector
  5. If necessary, replace the injector

Related codes

Error P2B1B by Vehicle Brand

FAQ

What does the P2B1B code mean?

P2B1B is an OBD-II diagnostic trouble code that indicates: Cylinder 6 Injection Pulse Offset Exceeded Learning Limit

What causes a P2B1B error code?

The most common causes of P2B1B include: Malfunction of the injector of the 6th cylinder; Fuel filter clogged; Problems with the fuel pump; Faulty wiring to the injector.

How do I fix a P2B1B diagnostic trouble code?

To fix P2B1B: Check the condition of the injector of the 6th cylinder. Test the resistance and power of the injector. Check the fuel filter and system pressure. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2B1B?

Yes, but get it checked soon

How much does it cost to fix P2B1B?

The estimated repair cost for P2B1B is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat