iceman89gt

ok guys whats up all, i know its been awhile but ive been working in erie,PA the last 3 weeks and this past weekend i was home and decided to go to the track to run my stang. well as many of you may remember i had some problems with my stang when shifting quickly from one gear to the next. it would stall for a brief second and then resume acceleration and this would only happen between first and second gear and third and fourth and not always the same,sometimes it would be between just one or the other. well it happened again this weekend and i bumped the fuel pressure up from 35 to 42 and that didnt help. i ran the scanner on her saturday and it showed bad o2 sensor lean condition and rich condition, too high signalon tps, and weak mass air signal. heres the catch, when i check tps with volt meter its showing fine,when i unplug the mass air sensor it dies, it doesnt seem to be running rich or lean. could it be a bad egr valve and sensor or could it be the timing. also when i first crank it up it surges up and down from 1500 rpm to 500 rpm and then slowly settles in at 1000 rpm idle after a few seconds could this possible be a memory problem with the ecu. i know im launching her at 4000 rpm with no stalling or anything but it also seems she should be smoking the tires launching this hard. im puzzled any advice guys would be deeply appreciated

iceman89gt

come on guys i know some of you have had to have had these symptoms before.ANYONE FOR CHRIST SAKES!!!!!!!