Lets start with what the customer brought her car in for. vehicle was stalling and running poorly, customer stated her "boyfriend had already replaced the crankshaft sensor and the camshaft sensor. He couldn't repair it so you brought it in for us to diagnois. We checked the computer and found codes p0335, p0339, p0340, p0344. we cleared the codes and started the engine, it ran rough, test drove around the building and the codes returned. we then went to check the circuits of the camshaft and crankshaft sensors. when we disconnected the 2nd plug on the computer(wires to those sensors) we discovered that the pcm had failed and overheated melting the circuits inside and oozing a chemical out of the pcm body. reported are findings to the customer with an estimate. She called back and said her boyfriend was going to replace the pcm and she was going to call the mobile programmer we had once given her the number to previously and have him do the programming. So the customer picked up the vehicle. Our job was done, so we thought. apparently she had a different pcm installed and programmed? and they found the check engine light was on, presumably with a different code(o2 sensors). I do not appreciate the statement insinuating we misdiagnoised your vehicle. we where not given the opertunity to finish this job due to the fact that the customer did not have us do "ANY REPAIRS" only diagnostics.