I recently had a P0420 code come up on my car. So I changed out the o2 sensor. After changing that I got a P0054 code so I changed out the other o2 sensor. I can clear out the code and as long as the engine is warm when I clear out the code the code will not come back on. However, When I allow the engine to be shut off for more than 2-3 hours as soon as I get back in and start the car and start to drive the car the check engine light come right back on. The code is always a P0054 HO2S Hearter Resistance Bank 1 Sensor 2. What can I do to fix this?
Wednesday, February 22nd, 2012 AT 5:42 PM