I bought a 2001 Ford Focus 1.6 LX just over two weeks ago. When purchased it had a fault which the RAC diagnosed as a faulty MAF sensor. Since then this has been replaced, but the car is still not ...

I have a 2001 Nissan Micra K11 1.0. I've been experiencing really poor engine performance recently. It would start easy enough and idle OK, either cold or hot, but would not rev when I pressed the ...

Last month we fielded a question about a fault code a reader had been trying to repair for more than a year. To recap, the Corvette in question, a ’96 model, had a recurring P0171 code, or “System Too ...

Your engine needs a steady stream of clean air to function properly, and it's the job of the mass air flow (MAF) sensor to measure and regulate the amount of clean air entering the intake. The engine ...

Modern cars rely on a dense web of sensors to manage everything from fuel delivery to collision avoidance, and when one fails, the result can range from a minor annoyance to a four-figure repair. I ...