Ford Engine Error Code P1116: How to Fix It

Q: Can I drive with Ford error code P1116?

You should avoid extended driving with P1116 as the faulty ECT sensor can cause poor fuel economy, rough idling, and potential engine damage from incorrect fuel mixture. Short trips to a repair shop are generally safe, but monitor your temperature gauge closely.

Q: How much does it cost to fix Ford P1116 error code?

DIY repair typically costs $20-50 for a new ECT sensor plus coolant. Professional repair ranges from $150-300 depending on labor rates and whether additional cooling system service is needed.

Q: What happens if I ignore Ford P1116 error code?

Ignoring P1116 can lead to poor engine performance, reduced fuel economy, rough idling, and potentially serious engine damage from running too hot or too cold. The engine control module relies on accurate temperature data for proper operation.

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

Yes, P1116 will likely cause your Ford to fail emissions testing as it indicates a problem with an emissions-related sensor. The code must be resolved and the system must complete its readiness monitors before passing inspection.

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

Signs of a bad ECT sensor include P1116 error code, inaccurate temperature gauge readings, poor fuel economy, rough idling when cold, and engine running too hot or too cold. Testing with a multimeter can confirm sensor failure.

Abstract

Ford error code P1116 indicates that your Engine Coolant Temperature (ECT) sensor is reading outside of its normal operating range during the self-test procedure. This sensor monitors your engine's coolant temperature and sends this critical information to the engine control module to ensure proper fuel mixture and timing.