Subaru Error Code P1142: How to Fix It

Q: What causes Subaru P1142 error code?

P1142 is typically caused by a faulty throttle position sensor, damaged wiring to the sensor, poor electrical connections, or carbon buildup affecting sensor operation. Less commonly, it can indicate issues with the engine control module.

Q: Can I drive with Subaru error code P1142?

You should address P1142 promptly as it affects engine performance and fuel economy. While you may be able to drive short distances, continued driving can cause additional engine problems and potentially leave you stranded.

Q: How much does it cost to fix P1142 on a Subaru?

Repair costs range from $50-150 for cleaning and minor repairs to $200-400 if the throttle position sensor needs replacement. Labor costs vary by location and whether you choose a dealership or independent mechanic.

Q: What are symptoms of P1142 in Subaru vehicles?

Common symptoms include rough idling, poor acceleration, hesitation during throttle input, reduced fuel economy, and the check engine light. Some drivers also report stalling at idle or difficulty starting.

Abstract

Subaru error code P1142 indicates that your throttle position sensor 2 is receiving an abnormally low voltage signal. This critical sensor helps your engine's computer manage air intake and fuel delivery, so when it malfunctions, you may experience poor acceleration, rough idling, or reduced fuel economy.