giarc74

Hi guys. New here . I have a 2004 2.2 liter cavalier that sputters bad and sometimes stalls. So far changed coil packs fuel pump spark plugs and wires and now at a loss. Can anyone please give me some input as to what else I should be looking at here . Any help appreciated thanks

tech2

all the time? at idle, ok at higher rpm? hot/cold? lack of power?
SES light on? If yes, post the codes.

giarc74

It's sputters on idle and hi rpm while running hot and cold. There are no ses or other lights on in the dash except t/c. Traction control. With no lights on makes it even harder to figure out. Has new spark plugs. Coil pack . Fuel pump and what looks to be like a new computer.

tech2

Kinda hard to say without having any live data to view.

giarc74

I just changed power train control module. Now still sputtering but now I have little orange engine light on

Cavy94

Consider these steps:
1. Inspect entire fuel system(fuel lines & pump) and do fuel pressure test.
2. Do a spark plug test.
3. Do a fuel injection test to determine if the fuel injectors are spitting the right % of fuel.
4. Do an air leakage test to check for air leak into the intake.

Stalling & Sputtering means you are not getting the right combustion to sustain t he engine. Question.....what is causi
ng this. Do the tests and you'll no if you have the right air & fuel %. If the problem persist, we'll go to bed phase 2. Good luck.

cleveland63b

bit of a guessing game without being there but i'd definitely start with fuel pressure and volume tests...you have good fresh fuel?