im not sure whats wron with my car but it does not respond like it used to. they tell me it can be how i put the new tps and check the voltage. my idle on the freeway is pretty high for an automatic 3,000 rpmwhat can i do or check. on overdrive my car feels spongy and doesnt not respond. sometime it reacts slow when droppin the gear my rpms dont even shhoot up and the car gooes no where what can this be? mass air? computer? or is my engine done?

 

i would check the tps voltage if u just changed it and was an adjustable one, if u do a search u can find the info on how to check it, i had a tps that went out on my and it would make the car idle really high, good thing i was close to home, had a hell of a time trying to stop it when it did that on me,