I have a 1995 Camaro with a 3.4 litre engine. It has 168,000 miles. The car takes forever to get up to speed and stumbles and shakes during acceleration. The car also idles rough. It is also using a lot of gas. 20 gallons to go about 160 miles. I have replaced the catalytic converter, the 02 sensor, fuel filter, and new plugs. None of this helped at all. Can u please help me?
Dont go buying a cheap scanner sometimes things are not even turning on the check engine light some auto part stores have scanners let them scan it normally for free to me it sounds like it might be egr but dont quote me if it is a good scanner will say good luck hope this helps you