Honda Error Code P1399: How to Fix It

Q: Can I drive with Honda P1399 error code?

No, you should not drive with P1399 code. Random misfires can cause catalytic converter damage, poor fuel economy, and potential engine damage. Have it diagnosed and repaired immediately.

Q: What causes Honda P1399 random misfire code?

Common causes include worn spark plugs, failing ignition coils, low fuel pressure, clogged fuel injectors, vacuum leaks, or internal engine problems like low compression.

Q: How much does it cost to fix Honda P1399?

Costs vary widely depending on the cause. Spark plugs might cost $50-150, ignition coils $200-600, fuel pump $300-800, or major engine repair $2000+. Proper diagnosis is essential.

Q: Will Honda P1399 clear itself?

No, P1399 will not clear itself. The underlying misfire issue must be repaired, then the code manually cleared with an OBD2 scanner before the check engine light will turn off.

Abstract

Honda error code P1399 indicates a random misfire has been detected across multiple cylinders. This serious issue can cause engine damage if not addressed quickly and typically points to problems with ignition coils, spark plugs, or fuel delivery system.