Mitsubishi Engine Error Code P0305: How to Fix It

Q: What causes P0305 cylinder 5 misfire in Mitsubishi vehicles?

Common causes include worn spark plugs, faulty ignition coils, clogged fuel injectors, vacuum leaks, low compression, or carbon buildup. Spark plugs and ignition coils are the most frequent culprits.

Q: Can I drive my Mitsubishi with a P0305 code?

You should avoid driving with a misfire as it can damage the catalytic converter and cause rough running. If you must drive, keep speeds low and get it diagnosed immediately to prevent costly repairs.

Q: How much does it cost to fix P0305 misfire?

Costs vary widely: spark plug replacement ($20-100), ignition coil ($100-300), fuel injector cleaning/replacement ($200-600). Professional diagnosis typically costs $100-150.

Q: Will P0305 clear itself?

No, P0305 will not clear itself. The underlying cause must be repaired and the code manually cleared with an OBD2 scanner. The misfire condition will persist until fixed.

Q: What other codes appear with P0305?

Related codes include P0300 (random misfire), P0171/P0174 (lean conditions), or P0420 (catalytic converter efficiency). Multiple misfire codes may indicate a more serious engine problem.

Abstract

The P0305 error code indicates a misfire detected in cylinder 5 of your Mitsubishi's V6 engine. This can cause rough idling, poor acceleration, and potential engine damage if left unaddressed.