Follow along with the video below to see how to install our site as a web app on your home screen.
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Read clear thru the OBD2 procedure - several methods are detailed, incl one that doesn't need a scanner
http://thetruckstop.us/forum/showpost.php?p=144956&postcount=3
Note: there is a method of mechanically turning up the DS4, called "the Bump", "Optic Bump", and etc - it is accomplished by advancing the mechanical position of the Optic Sensor on the camring, resulting in similar performance to advancing timing and doing TDCO LEARN - PCM doesn't know about the advanced position, so fuel rate is increased, advance is increased, performance increases - butcept, because PCM doesn't know about this little trick, an unwanted result is the accompanying increase in throttle sensitivity, to which some drivers cannot become accustomed