The knock sensor on your Toyota VVTi engine is basically a microphone that senses if detonation occurs in one of the cylinders. The detonation happens when the fuel-air mixture ignites before it’s ...

One of the common causes of lost power and performance in diesel-powered vehicles is a malfunctioning nitrogen oxides (NOx) sensor. These sensors monitor NOx levels in the vehicle’s exhaust. If they ...

There are a million and one things that could go wrong with a car engine. In old times, it was solely up to the owner and/or technician to drudge through possible issues until they determined what was ...