Dooney

Hey guys, I've seen the forum a lot before but just got around to joining. With that being said. I need some help with this issue. I've seen threads about it before but none have helped with my issue. I've got an 01 GT throwing these codes. I've checked for vacuum leaks and everything checks out good. I've good good fuel pressure averaging around 39-40 psi. I have a brand new MAF. No leaks before the upstream o2's. no leaks after the MAF to the throttle body. Now here are the two things that are throwing me off. I was looking at my live data with my Diablo and the long term fuel trims are reading -25% (rich) but when I look at the voltage on my o2's they are reading 0.89 v's (I believe from what I've read this means they are reading lean) I am getting the same reading on all o2's except bank 1 sensor 1 which is reading at 0.07 Can someone please help me out at figuring out what is going on? The car has a rough idle, is stumbling under acceleration. The only time it seems to run right is at WOT. I've also noticed that the car is going to closed loop at around 110 degrees. Is this normal? Any suggestions will help.

Dooney

I also apologize if this is not in the right section. Not entirely sure how to pick which section to put it in

Sleeper_GT

Try posting here:

https://mustangforums.com/forum/4-6l...lar-mustang-7/

Dooney

thanks for your help

95 BLOWN GT

welcome to the site...hope you find the solution to your problem