1997 T-Bird 3.8 EFI

[jarbeaub]

Hello there, i am new here and hope to be able to help some of you guys with some probs at some point. I am an experienced mech, and like to talk things through when i get stumped. My son bought a 97 t-bird and it misses and skips bad. it is a v-6 and seems to not fire at all on two cylanders, fires somewhat on two cylanders, and fires great on the last two. Now if it were a worn eng. or timing, or mechanical, i would expect to find a rich exhaust. yet it seems to burn clean..... WTF??? so i seem to be stumped. It also runs better when she has a massive vaccuum leak, ie. unplug the vaccuum booster and leave it open... WTFF????? so i have come to think it might be the computer not signaling the (or some of) the injectors.... now i can test it when my son gets her back together, but id like to know if the darn thing has more than one computer... i know the older multiports had a different systen which some manufacturers used a seperate computers to controll the fuel inj. so is this the case here or is it just the same ecu??? Thanks for your time. Brian

[canuck623]

Same ECU for all there Brian. Sure sounds like an over fuel situation. let us know when you test it what codes if any and any other info you can get for us.