Bad acceleration i have a 94 cavalier base model. when i accelerate itll go then hesitates and when im coasting but still giving it a little gas it jerks and sometimes i cant even go faster then 60mph. i just changed th TPS sensor but still doing the same thing

Must be some bad information getting to the ecu. Bad conections due to salt corrosion may be the cause. Bright metal contacts are essential for correct transmission of information from sensors to and from the ECU (brain). I'd take it to your auto parts store ask them to read the Ecu error codes. It may help isolate the problem. Sounds like fuel supply system problems.

Burn ignition coil get the car pass on a scanner im sure you get a misfire code

Maybe catalytic converter

MyNiss. 88 fwd tk.was doing than after, tuneup.Ihad crossed vaccum lines on air breather.

My 99 Audi A4 2.8 Quattro was havinga problem starting at times. It would idle poor upon start and then it would come up in rpm where it should be. I had hesitation from a start and after coasting for more than 5-8 seconds, the car would shake violently upon acceleration at about 1/3 throttle. I cleaned the Mass Air Flow Sensor. This helped but did not solve all my problems. I then replaced the Mass Air Flor Sensor. Little to no change there ($108.00). Lastly, I replaced the spark plugs. I bought Bosch plugs ($4.82 ea.). This got rid of all the symptoms. I had bad lugs and possibily a dirty MAF!

Im having the same issue I believe. I have a 94\' Chevy 1500 and when i accelerate it will jerk like the gas has cut out but it wont stall. It just jerks and slows me down. It only seems to do it when going up a hill. I feel like it could be the fuel pump or possibly some intake gaskets?

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Sounds like A MAP sensor or a bad fuel Pump. Good Luck

This sounds like your ignition timing is awry. You'll need a timing light to verify if this is correct. If that's OK the your valve clearances may be a little loose.