So I am working on my Father in laws Chevrolet Colorado. I had to do brakes on it and saw the SES light was on so I decided to hook up to it and see what it was. The codes were P018 b and C Fuel pressure sensor range codes. I was thinking they were tank pressure codes for the evap but then I took a drive and saw that the LTFT and STFT are way rich. _50 in most areas. Can someone point me in a direction of where to start. I am going to do plugs and wires anyway because it has 120k on it and never had it done.
Thanks
Last edited by AndrewJReynolds85; 04-19-2020 at 05:53 PM.
Reason: added file