STANG1988

hey everyone ........ I am having the same problem with my 88gt, I bought a new computer from NAPA Al9 for a 89gt I hooked the mass air to pin 50 and pin 9 in the ecm and i hooked the tab/tad to 32 and 38 just like the harnness said I have not hooked up the VSS or the fuel pump yet and all the car is doing is over fueling and barely idles if I unhook the vacume line from the map sensor and leave it open on the manifold side it idles better but still runs like crap, I have 2 used maf snsors from a 90gt four pin connector kit from jegs and did the wireing as per instructions any help would be great !