one more thing wrong with my powerchoke

[glassmanfrp]

99 f350 drw had truck 10 years 198000 on od,I think i replaced most parts 2 and three times. my problem is truck runs fine then it will hicup and eng lite comes on then it runs like its only got 4 cyl no power but then it hicups and its fine,the only codes i have got are map and boost have swaped still get someone told me could be warmup valve???????????

[Awelch]

maybe icp sensor idk tho jus sounds like what mine is doing now and thats what was wrong with it.

[sinluien]

it happened to my truck right before my wires melted in the valve cover... i hope thats not it, but goofy sensors do crazy stuff. ICP or CPS. never had a bad map sensor, however manifold absolute pressure, detects pressure wrong, i would assume it would screw up your fuel map, change it.

[N4TECguy]

I'd look into the UVCH