OBD Guide
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P12C2

Cylinder 8 Injection Timing Advance

P12C2 is an OBD-II diagnostic trouble code meaning: Cylinder 8 Injection Timing Advance. Common causes: malfunction of the fuel injector of cylinder 8, problems with the fuel pump. Estimated repair cost: $17–89.

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

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Dips during acceleration
  • Check Engine Light Illuminates

Causes

  • Malfunction of the fuel injector of cylinder 8
  • Problems with the fuel pump
  • Dirty fuel filters
  • Malfunction of the crankshaft position sensor
  • Problems with the engine control unit

How to Fix

  1. Check the condition of the fuel injector of cylinder 8
  2. Check the pressure in the fuel system
  3. Replace fuel filters if necessary
  4. Check the operation of the crankshaft position sensor
  5. Scan the engine control unit for errors

Related codes

P12C1P12C3P12C4

FAQ

What does the P12C2 code mean?

P12C2 is an OBD-II diagnostic trouble code that indicates: Cylinder 8 Injection Timing Advance

What causes a P12C2 error code?

The most common causes of P12C2 include: Malfunction of the fuel injector of cylinder 8; Problems with the fuel pump; Dirty fuel filters; Malfunction of the crankshaft position sensor.

How do I fix a P12C2 diagnostic trouble code?

To fix P12C2: Check the condition of the fuel injector of cylinder 8. Check the pressure in the fuel system. Replace fuel filters if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P12C2?

Yes, but get it checked soon

How much does it cost to fix P12C2?

The estimated repair cost for P12C2 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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