Subaru Error Code P1152: How to Fix It

Q: What causes Subaru P1152 error code?

The P1152 code is typically caused by a faulty front oxygen sensor, damaged sensor wiring, exhaust leaks near the sensor, or contaminated sensor from oil or coolant leaks. Less commonly, it can be caused by fuel system issues affecting the air-fuel mixture.

Q: Can I drive with P1152 code?

You can drive short distances with P1152, but avoid extended driving. The faulty oxygen sensor will cause poor fuel economy, increased emissions, and potential damage to the catalytic converter if left unrepaired for too long.

Q: How much does it cost to fix P1152?

If you do the repair yourself, expect to spend $50-150 for a new oxygen sensor plus tools if needed. Professional repair typically costs $200-400 including labor, depending on sensor accessibility and local labor rates.

Q: How often should oxygen sensors be replaced in Subaru vehicles?

Subaru oxygen sensors typically last 60,000-100,000 miles. Replace them when they fail or show signs of contamination. Regular maintenance and using quality fuel can extend their lifespan.

Q: Will P1152 cause my Subaru to fail emissions testing?

Yes, P1152 will likely cause your vehicle to fail emissions testing. The faulty oxygen sensor prevents proper air-fuel mixture control, leading to increased emissions that exceed acceptable limits.

Abstract

The P1152 error code in Subaru vehicles indicates a problem with the front oxygen sensor (Bank 1, Sensor 1) range or performance. This sensor monitors exhaust gases to help your engine's computer adjust the air-fuel mixture for optimal performance and emissions. When this sensor isn't working properly, you may experience poor fuel economy, rough idling, or failed emissions tests.