It’s. It a truck !!

If the doors & tailgate are all closed, and the car is low, then the compressor is feeding the tank and any airbags that need to rise. To fill the tank only a door or tailgate needs to be open. Your compressor failure two weeks ago could either be gradual aging & it eventually gave up, or it...

After doing the chip replacement a while back on my spare HEVAC, got back on the HEVAC in the P38 again today. Replaced the 16-pin connector completely, and then tested all three motors using 9V battery & multimeter. LH Blend pot goes from 1.5k to 8.4k (maybe pot is 1 tooth out ?) RH Blend...

Probably the gasket, or whatever sealant has been used in the past. Looks a bit like where the front cover sealant is supposed to go ?? Put the EAS on maximum height, and place blocks under the bump stops to prevent it dropping. Then just follow RAVE.

+1 ^^^^^^ Release the pressure slowly using a thick towel or rag on the cap.

It's about right for tickover, but you either need working diagnostics, or move the multimeter so you can see it from drivers seat. For your diagnostic issue, check the voltage across Pin-16 (12V) and Pin-4 (Ground). Connector might need cleaning ?

It would help to know the Low & High pressure readings. Might not be the filter

Took wife's 2005 FL1 for MOT today. Passed with no advisories !!

Did you do the pressure test wiht the engine hot ? If not, get it properly warmed up for a few miles, and then do the pressure check.

You could try the old idea of soaking in bucket of diesel for a week or so ??

If it's only a small amount missing, chances are it's evaporated by the time you look for it !!

Also check that GEMS is set for the correct engine size. 2nd screen in settings menu. Once you get the settings in the right ballpark, you should do some drive cycles to train the ECU.

Also unplugged & tested blend & distrib motors using 9V battery & multimeter on the pots via the 16-pin connector. All seem to be working ok with smooth resistance change through the adjustment. But, when plugged back into the HEVAC, I get intermittent faults & damn book symbol. So getting...

For info, here's my GEMS at idle. No faults stored, and adaptive not cleared for many months.

Yes, using Nanocom Inputs screen.