99GTP1/2 throttleSteeringWheelShake&DoesntGoNewhere

[Cbierniat]

Ok...when i give my car more than like lets say 1/2 throttle my car shakes and seems like its bein held back or like somethings slipping and does not go anywhere which makes it extremely hard to pass anything even a damn ford aspire lol...the steering wheel starts to shake/vibrate. The SES comes on occasionally. Ive had the s/c coupler replaced..u-bend removed... i know its well over due for a tune up with 125k miles but it just started outta no where...it used to like chug when u gav it light steady gas but i put a fuel injector cleaner in it and it stopped a few k miles later it did it again i did the same and it didnt stop and evenutally did this...please help!!!!!!



All feedback greatly appreciated