Injector Circuit - Cylinder 12
The P0295 code means the vehicle's onboard diagnostic system has detected: Injector Circuit - Cylinder 12. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $200 - $800 (parts and labor)
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Common Symptoms
- Check Engine Light on
- Cylinder 12 misfire
- Rough running on V12 engine
- Power loss
Probable Causes (Ranked by Likelihood)
- Faulty cylinder 12 injector Very High
- Wiring damage High
- Connector fault Moderate
- PCM driver failure Low
Step-by-Step Diagnostic Procedure
-
Measure cylinder 12 injector resistance.
-
Inspect wiring and connector.
-
Swap injectors to diagnose.
-
Check for additional misfire codes.
Frequently Asked Questions
Where is cylinder 12?
Cylinder 12 is the last cylinder on a V12 engine, typically located at the rear of Bank 2.
Are cylinder 12 injector problems common?
No, these are rare codes found only on V12 engines, which represent a very small percentage of vehicles on the road.
Is the repair approach different for cylinder 12?
The diagnostic approach is the same as any other cylinder, but access may be limited due to the engine bay layout.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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