i changed out the front o2s again today maybe i had a bad one well see

 

changed 02 and fuel pump and no light after 3 days

 

Still no light?

 

dude i got the same exact problem, was it the injectors?

 

i have the same problem dont know what it is it been like a monthi'v been haveing these problem. so i took it to a shop and the said the it was the computer???but i dont think that what it is. so im going to take it to fords and see what they think it is. but keep us posted thanks.

 

let me know too cuz im getting 1131 and 1151 codes on day and 1152 code the next, lean to rich makes no sense, changed intake manifold gaskets, repplaced injector o rings and have two new 02 sensors less than a year old

 

I had the same code (p1152) it's being set off after you install an o/r mid pipe due to the cats being gone sets off the o2 sensors. When you plug in your mils you should have your battery disconnected leave it disconnected for about 10 mins and the reconnect the light should turn off and as far as idle issues go try replacing the IAC it might be that

 

I applaud your use of the search function, however thread is mostly over 4 years old, with the newest post being well over 2 years old. It's OK to start a new one after that much time has passed...

You can look up the codes here and see possible causes and diagnostic tips too. P1131, 1151, and 1152 all have the same causes and diag tips as P1130.

 

thanks cliffy, i also do use your site for the codes, when i first open my throttle i get a whistle noise coming from somewhere dont know where but its a vacuum leak obviously, i didnt realize this thread was this old haha

 

Check everything in the intake between the throttle body and the MAF, any unmetered air (air that hasn't passed through the MAF) entering the intake would cause the problems you describe.