Volkswagen Audi Error Code P1116: How to Fix It

Q: Can I drive with P1116 error code?

Yes, you can drive with P1116, but it will affect fuel economy and emissions. The engine may run slightly rich, causing increased fuel consumption and potentially damaging the catalytic converter over time. It's best to fix this issue within a few hundred miles.

Q: What causes oxygen sensor heater circuit failure?

Common causes include normal wear after 60,000-100,000 miles, heat damage from exhaust leaks, water intrusion into the connector, or physical damage from road debris. Poor quality fuel or oil contamination can also shorten sensor life.

Q: How much does it cost to fix P1116?

A replacement oxygen sensor typically costs $50-150, plus 1-2 hours of labor if done professionally. DIY repair costs just the sensor price plus basic tools. Total professional repair usually ranges from $150-300 depending on vehicle access and labor rates.

Q: Will P1116 cause my car to fail emissions testing?

Yes, P1116 will typically cause your vehicle to fail emissions testing since it affects the oxygen sensor system that monitors exhaust emissions. The error code must be resolved and the system must complete its readiness monitors before passing inspection.

Q: How do I know if it's the sensor or the wiring?

Test the sensor's heater resistance with a multimeter - it should read 2-14 ohms. If it reads infinite (open circuit), the sensor is bad. If resistance is normal, check for 12V power at the connector with ignition on. No power indicates a wiring or fuse problem.

Abstract

Error code P1116 in your Volkswagen or Audi indicates an open circuit in the oxygen sensor heater for Bank 1, Sensor 1 (the sensor before the catalytic converter). This means the O2 sensor's heating element isn't working properly, which can affect fuel efficiency and emissions. While not immediately dangerous, this issue should be addressed to maintain optimal engine performance.