NEED HELP

[*whiteXJ*]

ok heres the deal , when i start my jeep it stumbles and some times it dies and when i put it in gear. when i start driving it some times backfires in the intake and when i give it gas it slowly revs up and shifts suddenly and and throws me in the seat ? i have no clue what can do all this? need help?

[*whiteXJ*]

its got a 97 motor with the 91 intake and wiring

[*whiteXJ*]

its ran perfect since January

[goodburbon]

Check Idle air controller, TPS, IAT, MAP and Oxy sensors. One of them is messing up. The IAC and TPS sound most likely with those specific symptoms.

[90Blue_XJ]

I would bet on the TPS but I have been fooled before.