F150 Boost pressure feels limited
- Thread starter Defhd10
- Start date
Does anyone think this could be a pcm glitch? From what ive found, the truck wouldnt have started if the flash would have been missing something. But remember this is happening both stock and tuned. Boost will climb and basically cap its self right at 7 lbs. But if i do a wide open throttle run, it will build full boost, 12-14 lbs or whatever it is. Could there be something missing from the recall flash thats not telling the computer what to do? Or could i have a turbo on its way out? I wouldnt think i would be able to make full boost at wot if a turbo was going bad. I dont have any smoke from exhaust, no high pitched sound of the compressor hitting the housing or a check engine light for low boost. So this makes me feel like the computer is only telling it to allow 7lbs. But a tune should change this and allow for much more, but it does not.
Yes my dads is the same truck to a T. Same strategy per what my x4 says when i read his vehicle info with it, and his runs flawlessl. He has 90k on his truck and i only have 64k so thats why this is so upsetting to me. I really dont wanna go pulling his pcm to try in mine. Really think that could cause even more headache. My cousin has a 13 as well, but has not had the recall done, and his is still running perfect also. He has 87k if i remember. I took the truck back to the dealer that flashed it the first time and asked them to flash it again. They CLAIM it went through the flash again but i know it did not. Especially when i asked what i owed and they told me it was written up as "internal" and there was no charge. Plus when i got back in the truck nothing was changed like the date, time or radio sound settings as all these are reset after a flash.SHOdded said:
Ive thought of trying another dealer to see if they would considering flashing again. Seems like thats my only option other then continuing to run it the way it is, which is not enjoyable at all. I know its not right, and that there is a problem, but i dont know what or where it is.
I'd ask Brad/AJP and or the tuner, but bumping the max limits does bot control or affect most non-wot behavior IIRC. Under non WoT you are on a oem tune for the most part unless the vendor goes balls deep to retune boost behavior when your under 70% throttle (might be 80%?)
Either way I know from Brad/Torrie tunes that My car (so not a full apple to apple) when i am not WoT there are more oem limits in use on the way it operates the WasteG, Bov's .. when i am WoT then i get the 14.5 / spark boosts to make the stumps cry
Either way I know from Brad/Torrie tunes that My car (so not a full apple to apple) when i am not WoT there are more oem limits in use on the way it operates the WasteG, Bov's .. when i am WoT then i get the 14.5 / spark boosts to make the stumps cry
I keep coming back to a stuck wastegate or a broken spring for hardware reasons. But you have already eliminated those possibilities. Hoses attached to the boost solenoid would be next. But if they did not touch anything under the hood, a bad flash might still be the frontrunner in this race.
Tried a total of 3 different boost solenoids. None of which made any change. Hoses attached to it are all good with no leaks. 2 different sets of oem actuators were tried with no change. Im leaning towards a software issue, or maybe the possibility of the wastegate internally or a turbo itself going bad.TopherSho said:
From what i see, all intake/intercooler piping has to come out in order to gain access. there is very little room with how the tubos are placed behind the shock mount assembly to just get in behind them to pull tubing off. Might be what it comes to on a nice weekend.TopherSho said:
