I got an Error Code of U0D00. Any ideas of what this is or means. The scan tool says to refer to your manual but I don't have one. Any help.

What the vehicle is doing is that it will work fine for a while then when you stop (in park) the engine will rev really high and back down all by it self for example. It will go up to 3.5 and back to 1 rpm repeated. Then when you start moving the car it will continue to idle higher like you are pressing the gas. During all of this the check engine light will appear?

Hi, the below text is my post of today and could be relevant to your problems with error code u0d00. I hope this info is of some help to you, regards
Highdfield6

Hi,
I recently posted a newbie post and asked about Trajet error/trouble code u0d00.

Well, through a process of elimination I seem to have tracked down the fault. Whether or not this is the code for that particular fault I don't know, but the fault is fixed and all is well after a LONG trial and error day.

Fault Code (error Code or Trouble Code u0d00 was showing on diagnostics but no reference to this anywhere.

Trajet 2.7 V6 Petrol with LPG conversion. Idlle on LPG was lumpy. On petrol much worse and spluttered and backfired, could not pull itself along. On open road at revs the LPG performance was about 80% but petrol bad. On level it would barely hold revs but no power or acceleration. On incline just slowed down and died as if petrol blockage or similar. Replaced Plugs, leads petrol filter but nothing at all made difference.

Last resort unplugged the Mass Air Flow meter cable and car ran perfectly on LPG and petrol. replaced cable and it died again. Don't know if the u0d00 code is relevant to this fault but it certainly was the problem on my Trajet.

Mass Air Flow meter replaced...like a new car again! Thanks to anyone who tried to find out this fault code.

I hope this info is of some use to other Trajet owners in same situation.

I suggest that you clean the internals of the MAss Meter by spraying it with carb cleaner first-the element that is inside the tube.