My camaro has been having issues lately? If the engine is cool the car will start fine and run fine. But after driving for a while and when the engine is hot, if you try to start it back up it wont start. It also has exhaust fumes that are very strong. Sometimes it will start when hot but it will putter and then die seconds later. I usually have to wait until the car cools down again before it will start running normaly. Im gonna try to replace the plugs and wires. The guy who had it before me put a chip in it and also big injectors. Whats goin on with it?