P12B8
Cylinder 3 Injection Timing Advance
P12B8 is an OBD-II diagnostic trouble code meaning: Cylinder 3 Injection Timing Advance. Common causes: malfunction of the fuel injector of cylinder 3, problems with the injector electrical circuit. Estimated repair cost: $17–89.
Symptoms
- Uneven engine operation
- Increased fuel consumption
- Reduced engine power
- The engine may stall at idle
- Possible misfire in cylinder 3
Causes
- Malfunction of the fuel injector of cylinder 3
- Problems with the injector electrical circuit
- Malfunction of sensors affecting injection timing
- Problems with the engine control unit (ECU)
- Dirty or clogged fuel system
How to Fix
- Check the condition of the fuel injector of cylinder 3
- Check the electrical circuit of the injector for opens and shorts
- Check the operation of sensors that influence the timing of injection (DPKV, DPRV, etc.)
- Scan the ECU for additional errors
- If necessary, replace the fuel injector or repair the electrical circuit
Related codes
FAQ
What does the P12B8 code mean?
P12B8 is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Injection Timing Advance
What causes a P12B8 error code?
The most common causes of P12B8 include: Malfunction of the fuel injector of cylinder 3; Problems with the injector electrical circuit; Malfunction of sensors affecting injection timing; Problems with the engine control unit (ECU).
How do I fix a P12B8 diagnostic trouble code?
To fix P12B8: Check the condition of the fuel injector of cylinder 3. Check the electrical circuit of the injector for opens and shorts. Check the operation of sensors that influence the timing of injection (DPKV, DPRV, etc.). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P12B8?
Yes, but get it checked soon
How much does it cost to fix P12B8?
The estimated repair cost for P12B8 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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