OBD Guide

P133F

Cylinder 8 Glow Plug Offset Exceeded Learning Limit

P133F is an OBD-II diagnostic trouble code meaning: Cylinder 8 Glow Plug Offset Exceeded Learning Limit. Common causes: faulty glow plug in cylinder 8, open or short circuit in the glow plug circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Difficulty starting the engine in cold weather
  • Unstable engine operation after a cold start
  • Increased exhaust smoke during startup
  • Check Engine Light Illuminates
  • Reduced engine power

Causes

  • Faulty glow plug in cylinder 8
  • Open or short circuit in the glow plug circuit
  • Problems with the relay or spark plug control module
  • Poor contact in the glow plug connector
  • Engine control unit malfunction

How to Fix

  1. Check the resistance of the glow plug of cylinder 8
  2. Inspect the glow plug power circuit for damage.
  3. Check the contacts in the glow plug connector
  4. Test the relay and spark plug control module
  5. Replace a faulty glow plug

Related codes

FAQ

What does the P133F code mean?

P133F is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Glow Plug Offset Exceeded Learning Limit

What causes a P133F error code?

The most common causes of P133F include: Faulty glow plug in cylinder 8; Open or short circuit in the glow plug circuit; Problems with the relay or spark plug control module; Poor contact in the glow plug connector.

How do I fix a P133F diagnostic trouble code?

To fix P133F: Check the resistance of the glow plug of cylinder 8. Inspect the glow plug power circuit for damage.. Check the contacts in the glow plug connector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P133F?

Yes, but get it checked soon

How much does it cost to fix P133F?

The estimated repair cost for P133F is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat