Mitsubishi P0301 Error Code: How to Fix It

Q: Can I drive with P0301 code?

You should avoid driving with P0301 if possible. While you may be able to drive short distances, continued driving can damage the catalytic converter and cause more expensive repairs. Get it diagnosed and fixed as soon as possible.

Q: What causes P0301 cylinder 1 misfire?

Common causes include faulty spark plugs, bad ignition coils, clogged fuel injectors, vacuum leaks, low compression due to worn engine components, or problems with the fuel delivery system.

Q: How much does it cost to fix P0301?

Repair costs vary widely depending on the cause. Simple fixes like spark plugs cost $50-150, ignition coils $150-400, fuel injectors $200-600, while internal engine problems can cost $1,500-5,000+.

Q: Will P0301 cause my car to fail emissions?

Yes, P0301 will typically cause your vehicle to fail emissions testing. The misfire increases harmful emissions and must be repaired before passing inspection.

Abstract

The P0301 error code in your Mitsubishi indicates a misfire detected in cylinder 1, which means the engine cylinder isn't firing properly. This can cause rough idling, reduced power, poor fuel economy, and potential engine damage if left untreated.