Postby Hook » November 8th, 2007, 1:57 pm
depending on the features u're looking for, the scanner can not only give u trouble codes but u can see reading from the sensors in real-time (IM pressure, ig timing, rpm, etc.)
some even have a database of factory sensor readings to reference what u're running against readings from a factory-set engine...that way u can know if something is about to fail before it happens if a reading is out of the suggested tolerance