welcome to 20 year old car tuning. do these things: 1 make sure your tps is adjusted correctly by using the multi-meter. 2 make sure the screw hasn't backed outta your pulsation dampner. 3 check the fpr. 4 do you have a fcd? if so remove it and throw it away. 5 replace your injectors, they should not leak fuel into the housings. 6 after you take out the fcd, take the hose off the boost pressure sensor, and plug it off on the opposite end. try those things and you'll prolly fix it