i just did the install of my turbo kit on an 04 350 M/T. after about 70 miles i now have these codes

p1148 closed loop bank 1

p1168 closed loop bank 2

p1031 front o2 sensor bank 1 lean shift monitoring

p1051 front o2 sensor bank 2 lean shift monitoring

p0100 MAF sensor

thoughts?

 

help?

 

Might be a vacuum leak..check around the MAF.

 

thanks, i will check that tonight. has anyone else had this issue? any other thoughts as to what it might be?

also, i am only running a 7 pound spring, not the 9 pound waste gate spring that comes with the kit. i did this because i am running the single 3 inch jic exhuast. do you think this may have anything to do with it?

 

No one that I ever heard of had those codes. Does the car start and idle ok? If you clear the codes do they come back. Are you sure you re-connected all the harnesses correctly. O2 harness, MAF harness, etc? Sorry for the stupid questions but its hard to troubleshoot over the net :-)

 

the car starts just fine, and it idles like a dream. we cleared the codes last night and i have not run the car since. we checked, and double checked all the connections before we ran the car for the first time.

 

Hmm if it starts and idles fine and drive normal and isn't in limp mode thats pretty weird. So you haven't started it since clearing the codes?

 

Why would you do that again? I have a single exhaust and kept the 9 lb spring which equals 8psi... Which is what your re-flashed ECU was map'd with

Not saying that is related to your problem, but I would think you would be running even more rich at WOT then any of us that were rich at 10.5 A/F.

 

when we started the car last night the codes were back, but my friend forgot his code reader. we thank that we heard a vacuum leak but could not find it, so i am taking it to my friends shop today. i will let you guys know what we find.