Quote:
Originally Posted by Alex P
Without knowing what the air pressure values should actually be for a correctly running engine I can only relate what my values show as I don't know if they are normal or not?
I am open and welcome to any suggestions.
|
Unless you're up a mountain, the manifold pressure should read atmospheric pressure with engine off ignition on and the same at idle so 14.69psi, or 1013 millibar/hectopascal hPa then rise with revs.
Your large under reading in previous screenshots is either a sensor fault, a wiring fault, an air leak, sticking VNT mechanism, failing motor in the VNT actuator or an ECM fault so spend your time looking at the possibilities within the ECM Parameters and Activations section of vehicle communication in Vida and explore the information section.
Vida is pretty easy to follow and contains a wealth of information but you need to take the time to read through it and understand it or be at the mercy of a main dealer who will charge a fortune or a garage who may not understand it either.
The savings you can make should be motivation enough.