95 chevy cavalier problems

[quote:de69a06683="chevy1022"]i have a 1995 chevy cavalier it has 111000miles 2.2liter ok when im driving my car the exhaust starts to smell and it moter starts jerking and sometimes it starts to backfire i put a oxygen senser and a map senser still runs the same what else can i dot[/quote:de69a06683]

do you have check engine light or service engine soon

You should scan for codes

you replaced the map sensor did you check the vacuum on it
Check the vacuum

Now my car barely runs at all! It putts when I am driving and has barely any power sometimes it will go back to driving ok but doesnt last long at all sometimes only a couple seconds it also stalls sometimes when idling and sometimes gives a little trouble starting back up...any ideas?????

[quote:6cdcb5ca5d="chevy1022"]Now my car barely runs at all! It putts when I am driving and has barely any power sometimes it will go back to driving ok but doesnt last long at all sometimes only a couple seconds it also stalls sometimes when idling and sometimes gives a little trouble starting back up...any ideas?????[/quote:6cdcb5ca5d]



Start from the basic
Fuel pressure and fuel flow
Spark weak or strong
Compression is it ok
After you cover all basics and all ok
You check EGR and its operation
Sensors and malfunctions by scanning ECM
Check fuel pressure and the tps

hows your tune up?