2011 crown vic interceptor p2196 code rough idle c e l

Question

Stumbles and misses. But most of the time it runs perfect

Answer 1

HI there

This code is pointing to a problem with the front O2 sensor on bank 1 of the engine. It's stuck rich which either means the sensor has a problem or the engine is running rich on bank 1. Sine the car runs good most of the time I would suspect a sensor issue.

P2196 FORD - Oxygen Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1

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