Used to diagnose my car's check engine light problem

Product was easy to understand and helped me diagnose my engine problem when I broke down.

Very helpful in diagnosing my engine problem

I always though of myself as pretty intelligent, but maybe you have to have an engineering degree, because I could not read this at all.

It worked perfectly, after I replaced the faulty sensor , l plugged it back in and erased the code, the check engine light turned off.