Subaru Error Code P1312: How to Fix It

Q: Can I drive with Subaru error code P1312?

Yes, you can drive short distances with code P1312, but you should address it promptly. The error won't cause immediate engine damage but may affect emissions performance and fuel economy.

Q: How much does it cost to fix Subaru P1312 error?

Repair costs typically range from $100-300 if you need a new exhaust gas temperature sensor, or $200-500 at a shop including labor. The sensor itself usually costs $50-150 depending on your Subaru model.

Q: What causes exhaust gas temperature sensor failure?

Common causes include normal wear and tear, exposure to extreme exhaust temperatures, corrosion from road salt or moisture, damaged wiring from heat or road debris, and contamination from oil or coolant leaks.

Q: How do I know if my EGT sensor is bad?

Signs include the P1312 error code, poor fuel economy, reduced engine performance, failed emissions testing, and in some cases a check engine light. Testing with a multimeter confirms sensor failure.

Q: Will P1312 code clear itself?

No, code P1312 will not clear itself. You must diagnose and fix the underlying problem with the exhaust gas temperature sensor circuit, then manually clear the code with an OBD2 scanner.

Abstract

Error code P1312 in your Subaru indicates a problem with the exhaust gas temperature sensor circuit, which monitors exhaust temperatures to protect your engine and emissions system. This sensor helps your vehicle's computer optimize engine performance and prevent damage from excessive heat. While this is a medium-severity issue that won't immediately harm your engine, it should be addressed promptly to maintain proper emissions control and fuel economy.