Symptoms: 1990 Hyundai Excel has a 1.5 engine and was running rough and it was using lots of gas. Using Hyundai OBD1 self diagnostic method, the following fault codes showed up in the dash panel: Code 11 Oxygen sensor failure Code 12 mass air flow sensor failure Code 15 TPS sensor...

Symptoms for Problems on 1997 Ford F150 Problems on 1997 Ford F150 happened after engine installation. The engine on this started to knock last week after the owner forgot to check the oil. It had too many miles anyways. He bought a used engine from the salvage yard and according...

Problem with 2005 Buick Rendezvous ECM: Solving 2005 Buick Rendezvous ECM (engine computer) problem is no easy task. One ATS customer suspected that the ecm was causing code P0335 and he asked for the vehicle ecm wiring diagram. A couple of days later he emailed me that the ecm reference...

Symptoms of 2004 GMC Sierra 1500 No Start This 2004 GMC Sierra 1500 No Start problem was reported after this ATS customer replaced his distributor assembly. He replaced it because it has no spark and after replacing both the ignition control module and ignition coil. The engine ...