Looking for a little help on finding a problem with my 94 camaro.
It has a 3.4L engine which when you accelerate will backfire and act
like it is missing, very rough but when you get up to speed say 50 mph
it will run fine until you accelerate again then it stumble all over
I have replace the cat, O2 sensors (2), EGR value and fuel filter but
Any leads as to where to look or what to change would be appreciated,
I also have another 94 camaro 3.4 which runs fine so I have a source
of parts to try.