hershey wrote:
The reason you get a fault or code when using the engine brake is because the engine is over-revving on your decent. Your engine could be red-lined at about 2750. That number is for peak rpm on acceleration. When the engine brake is engaged you can easily exceed that number. That isn't a problem There probably is a de-acceleration number on the engines but its a larger number than the acceleration rpm number. You engine computer will prevent the engine from over-revving when using the engine brake but it still shows up as a fault code and the code light will light up. Rest easy.
I will check the RPM when I use the brake. The lite also comes on just driving at slow speed in town and stays on for a while. What I do not like is the surgging when going to around 2000 RPM while the lite is on.
I have the scangage II in my Ford. I see the D on the net and it shows an RV, good news, thanks, i will order this one. It also says that for the big diesel engine the OBDII is not standard.
