Paul59

Howdy,

New to this board, was glad to find it. l bought a 95 Camaro, original owner
with 95,000 km. We have replaced plugs, wires, air filter, fuel filter, O2 Sensor, PCV valve, checked the EGR valve, ignition coils and ignition module.

This seems to be such a common problem with this motor, any ideas?
BTW, it`s not the head gasket either.. Thanks a million for any help or ideas you can pass on..

Injuneer

Sounds like you have taken care of the ignition side of the equation. What about the fuel side.... possibly dirty/leaking inector(s), faulty fuel pressure regulator. Then there's the mechanical side.... have you done a compression check? Are the valves adjusted correctly?

Have you checked for vacuum leaks?