Originally Posted by
Cotyt94
Getting a P0412 and misfire #6 and an 02 sensor
Pull the RCM apart and clean the Air Injection motor relay.
It's my belief that the O2 sensor heaters run through this relay as well as the AI motor.
I was throwing a p0412 and codes for all 4 o2 sensor heater circuits. After I cleaned the relay, no codes in 1500 miles.
Jared