It’s currently running 2mm fab catless long tune headers. JLT cold air intake and was on a 93 tune. Noticed before it was stuck at 14.0 and then switched tuners this week but can’t datalog since this is occurring. So I’m currently on a base file tune.
Hi I own a 2019 Mustang GT, I have been getting these 4 codes on my car. Noticed it is also stuck at 14.0 on my air fuel ratio. I checked and they seem to be plugged in and the fuse also looks good. Ordered some upstream replacements and a wiring harness if needed. Just wanted to see any ideas...