bigbird189
Member
- Joined
- Dec 17, 2011
- Posts
- 33
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- 1
My 2003 Yukon has had check engine light on for quite some time now. I gone and had it checked by autozone computer. Its says it is a bank 1 sensor. Well I have replaced it and it still says bank 1 sensor. I put a new air filter in it and ran premium gas but still check engine is stays on. I had the computer delete the code but it keeps showing back up. Could it be the fuel filter needs to be changed? When it is cold starts to blink until I rev the engine for a minute but when I let off the gas the engine sputters but runs just fine when i am driving it down the road? I have heard other threads of similar problems but no answers to them. Can anyone tell how to fix this? I am trying to sell it but I dont want to sell it with any problems.