Broke down, stranded... ECM help!!!! Please!

[Kaboom352]

Ok here is what I have... I have a 91 chevy cavalier 2.2 L . ( in know this is a truck board but I figured someone could help). The problem started 2 weeks ago with hard starting and spuddering at about 3000 RPM. I change the fuel filter check plugs and wires everything was fine. Its a beater so I just kept drivng it figureing it wasen't to bad. The other day I had a real hard time starting it (acted flooded) but after it was running it run good till 3000 RPM. Today I took off the air cleaner and such to check things out and it was dumping way more fuel than it needed. A steady streem at idle and what seemed like cup fulls reved out... I think it is the ECM. I called parts stores and they say the replacement does not come with the "chip" do I need the chip or can it be swaped out. The car is now broke down on the side of the road is an ecm swap something that can be done on the side of the road? Do I just plug in the new ECM and go or does it need to be programed and such... please help me out I need my beater...

[perna00]

if it's like the newer cavalier, there's an imprinted chip in the ecm. you have to take your one (orig. ecm off your vehicle) to the dealership for them to save the settings of your specific vehicle, then you have to take the new ecm there so they can program the values of your old one into the new one. quite a pain in the @ss

[C_Sephiroth]

You Take the Chip out it is acually a KS module, Knock Sensor module, and put it into the new ECM. I don't think you have to program that year of ECM, the Chip is your programing, If I am not mistaken. But Your problem sounds like a fuel injectors too.

[rex1one]

You don't have to program that year (I have that car, but mine's an RS, But I'm don't see why the Z24 would be different). The Chip just pops out, if you just want to replace it go to a junkyard and find that same model.