Chrysler Repair: 98 Plymouth breeze: uneven when coasting,dieing at high speed, throttle position sensor, 4 digit numbers

Question
When I am driving my car and i am coasting at about 35 mph car jerks like im slamming on brakes any ideas? one other thought, recently as i get to anywhere from 60-75 mph i will totally loose gas then eventually stall out cant find any answers to the problem except possibly throttle position sensor  please help...

Answer
Hi Matt,
The best way to approach these issues is to do a readout of the engine controller for fault codes, and you might also do that for the transmission controller. You might be able to get if for free an an Autozone or other parts store. Or a shop will likely do it for under $40. These codes begin with a P and have 4 digit numbers. Get those numbers and any suggestions as to what they mean and what is the proposed repair and costs. Then write back and we'll compare to the manual and I can adise you on doing it yourself.
But getting the fault codes if the only efficient way to move on these problems. Tell me which engine and transmission you have when you write back.
Roland