hello, i have my 96 f150 with a 5.0 that has been giving me some issues. it's giving me codes p102 and p172. i've replaced the maf sensor twice and it's still giving me the p102 code. p172 comes and goes. about the truck, it idles fine, it accelerates fine with no hesitation, but yesterday it started stalling on me. it seems to stall when i let go of the gas, say i'm driving and coming up to a stop, if i'm not going to fast it will die.
what about the Idle Air Valve, will it throw any of those codes if it's bad, or the Throtle sensor? some help would be great

 

ok, 1st quit throwing mass air flow sensors at it! 2nd you have a vaccum leak somewhere. you still could possibly have a bad iac or a tps. fyi, do not buy whatever part the autoparts store says is bad after they scan it for for you! its a huge scam!

 

just a poorly trained parts guy. there are ways to test maf sensor and ill bet jk is on it vac leak