1990 cavalier problem help!!

i have a 1990 chevy cavalier that when i go to start it it will turn on but wont fire the thing is it only does it when its cold outside. when i am driving it and it decides to act up it bucks before it shuts off. ive already replaced the fuel filter and the crank sensor and was wonder what it could be? could it be the fuel pump?? please help!:crying:

Check fuel pressure. See youtube 'fuel pressure test'.

Does it lope at idle when warm?

Bucks before shuts off? You mean like dieseling? Run-on???

yea it bucks before it shuts off but it only acts up when its cold out side mainly late @ night or early morning. and what do u mean by deisel? its auto matic and 2.2L i really dont know anything about chevys

yea it bucks before it shuts off but it only acts up when its cold out side mainly late @ night or early morning. and what do u mean by deisel? its auto matic and 2.2L i really dont know anything about chevys

Diesleing - keeps running for a minute or so after shutdown.

Do the tests described...

sinced it is temp related it could be a bad coil or something else electrical.