Quote:
Originally Posted by robnitro
I can't figure out how to pull up the diagnostic steps in rheingold ista-d for a specific code. Searches turn up nothing... This is what I could find when I go to the functions under DDE for the map sensor.
What is odd is that I can search for the codes listed in here, and it comes up as documents, but 433a does not. I wonder if its a code more related to maf.
EGR won't change the intake pressure, that's the turbo actuators and fueling that does it. But since you are deleted maybe your tuner has an idea what it could be.
Or perhaps it is a code that points to some maf plausibility reading and you might need to use rheingold/ista-d to reset the adaptations for the MAF/oxygen-lambda sensor?
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i found this in wikipedia
"The MaP sensor is then used for rationality checks and to test the EGR valve. The way they do this is during a deceleration of the vehicle when there is low absolute pressure in the intake manifold (i.e., a high vacuum present in the intake manifold relative to the outside air) the powertrain control module (PCM) will open the EGR valve and then monitor the MaP sensor's values.
If the EGR is functioning properly, the manifold absolute pressure will increase as exhaust gases enter."