I have a 95 cavalier 2.2 wiring harness, computer, and ignition control module with a 96 cavalier long block . The fuel pump is turning on and the timing is on. The problem i am have is when i take the spark plugs out and turn the motor over the #3 cylinder is filling with fuel and is the only injector firing. Is there any sensor i need to change to make all injectors fire or are the injectors bad! Any kind of knowledge on this issue would be greatly appreciated. I am more then willing to give you any kind of information needed to help me solve this problem. Thanks!

My guess is the other injectors are bad.

Simple way to test would be to change the position of the injectors.
Take off the fuel rail, and mark your good injector with a marker or tape.

unplug the injectors, and move them to different spots on the rail.

put everything back together, and see if the only injector that works is still the one thats marked.

if the only injector that works is the one you marked, the other injectors are bad.

if the #3 cylinder is still the only cylinder getting fuel, you may have a wiring issue on the other injector positions.

I would listen to this man ^^^^^^^^

He's pretty damn knowledgeable about these j-bodys.


- Your not-so-local, untrained, uncertified, backyard mechanic. But my @!#$ runs

thanks guys that helps i will deff try that today and i also heard that it could be possibly the ground by the thermostat and or the computer?

I doubt that, because it's a batch fire system. So if the ground was bad it wouldn't be able to fire any of them.





i find it amusing that SHOoff has nothing better to do but follow me around & be an unhelpful dick in even cross-forum. - Jon Mick

i have had this problem seeing how the injectors are side feed your o rings are bad when you turn the car on nothing is stoping the fuel from going staight in to the motor. the o rings are like 12 bucks at auto zone


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