could be, buttt:

took it back to ford, they were able to trace the P0171 to a leaking exhaust on passenger size. they said replace the cats (which ive been meaning to do). so hopefully ill be able to fix this once and for all

 

Yay!

 

... son.. this is still going on... i usually get on here to check out your process.. i dunno whats going to happen after you get it fixed

 

I just need a secondary vehicle and whatnot so I can drop the truck off. I just don't see how the cats are causing an exhaust leak

 

If they are clogged, the extra back pressure can cause leaks.

 

okay thanks

 

Got my new catalytic converters put in, flashed my SCT and reset the computer

23 mpg hwy avg

 

What did you put on for cats? BTW glad you got it fixed, any butt dyno difference?

 

Two Magnaflow High-Flows. The butt dyno says power rolls on a lot smoother. engine quieter and of course better mpgs. its got a louder rumble at idle too not too much but enough for me to notice

 

So happy for ya-you have been fighting that for awhile.

 

awesome!

 

only 6 months

 

glad you figured it out. Just a question now that you have it fixed. You make $5.00 an hour, drive a vehicle that is **** on gas, you spend a ton of cash modding it, and drive 100 miles a week? Are you insane?

 

Good to hear Alex.... I noticed a buit more throttle response on mine as well and plently of rumble

 

No, I'm in college