Your car’s engine is an amazing feat of engineering, but it doesn’t take much to cause problems with the way it runs. Too much air, too little fuel, a field mouse making the engine bay it home, and ...

Question: I took your advice and purchased a diagnostic scanner. I’ve been playing with it and trying to make sense of some of the things on the data list. I remember you saying that the “fuel trims” ...

Hello. I've had an ongoing problem with my 2008 Corvette for over a year. I have reoccurring fault codes of P0171 and P0174, fuel trim lean on bank one and two. I have had the car to four shops and ...