Honda Error Code P0135: How to Fix It

Q: Can I drive with Honda error code P0135?

You can drive short distances, but the vehicle may have poor fuel economy, rough idling, and will likely fail emissions testing. Fix the issue promptly to prevent potential catalytic converter damage.

Q: How much does it cost to fix P0135 on a Honda?

DIY repairs typically cost $50-150 for a new oxygen sensor. Professional repair costs range from $200-400 including labor, depending on sensor location and accessibility.

Q: What causes Honda P0135 error code?

Common causes include a failed O2 sensor heater element, damaged wiring, corroded electrical connections, blown fuse, or ECM issues. The heater element failure is the most frequent cause.

Q: Will P0135 cause my Honda to fail inspection?

Yes, P0135 will likely cause your vehicle to fail emissions testing since it affects the oxygen sensor's ability to properly monitor exhaust gases and maintain optimal fuel mixture.

Q: How long do Honda oxygen sensors last?

Honda oxygen sensors typically last 60,000-90,000 miles under normal driving conditions. Severe driving conditions, contaminated fuel, or engine problems can reduce their lifespan significantly.

Abstract

Honda error code P0135 indicates a problem with the primary oxygen sensor heater circuit in Bank 1, Sensor 1. This sensor helps your engine maintain proper fuel mixture, and when its heater circuit fails, you may experience poor fuel economy, rough idling, or failed emissions tests.