Honda P1108 Error Code: How to Fix It

Q: Can I drive with Honda error code P1108?

Yes, you can typically drive with P1108, but you may experience reduced fuel economy, rough idling, and poor performance. It's best to diagnose and fix the issue promptly to prevent potential engine damage from incorrect air-fuel mixtures.

Q: What causes Honda P1108 error code?

P1108 is usually caused by a faulty barometric pressure sensor, damaged wiring to the sensor, corroded electrical connections, or vacuum leaks in the MAP sensor system. Sometimes it can be triggered by altitude changes if the sensor fails to adjust properly.

Q: How much does it cost to fix Honda P1108?

Repair costs typically range from $50-300 depending on the cause. Simple fixes like cleaning connections or replacing vacuum hoses cost $10-50. A new MAP/BARO sensor replacement usually costs $100-250 including labor.

Q: Is Honda P1108 the same as P0106?

No, while both involve barometric pressure sensors, P1108 is Honda-specific for BARO circuit high input, while P0106 is a generic code for MAP sensor range/performance issues. They may have similar symptoms but different diagnostic procedures.

Q: Will P1108 cause my Honda to fail emissions testing?

Yes, P1108 will likely cause your Honda to fail emissions testing since it indicates a problem with the engine management system that affects air-fuel mixture calculations. The code must be resolved and the readiness monitors reset before passing emissions.

Abstract

Honda error code P1108 indicates the barometric pressure (BARO) sensor circuit is receiving a higher than expected voltage signal. This can cause rough idling, poor fuel economy, and reduced engine performance as the ECU cannot properly adjust the air-fuel mixture for current atmospheric conditions.