Tool for setting twin axle ride height please.

[brucemillar]

Thank you for this. I will try again following your post exactly and report back.

The only error I get on INPA is 116. If I clear it it comes back immediately.

But I can use the “hand control” in INPA to raise or lower, bleed, pump up, etc with no issues.

The re-built compressor includes cleaned solenoids and pumps well lifting the car quickly.

I also have zero sag, even if I leave the car for a week.

So the thinking is that it it errors when it thinks it is out of range on the calibration.

Trying to post a pic from my iphone but can’t sorry.

[e39_touring]

OK, that 116 error likely means you still have a problem with your compressor. I fought this one a while back for like 6 months and it was very frustrating as everything always tested out OK in INPA, but that damn error kept coming back, usually after a few days to a week.

I could raise & lower each corner, dump each valve, fill the tank and watch the pressure go up, dump the tank pressure, etc. All seemed fine.

In the end, I took my INPA laptop on a 1,000 mile road trip, and finally "caught it in the act". I pulled over the moment the SLI light came on and ran my INPA tests. This time, I could see that if I activated the pump with the tank valves in the right state, the tank wasn't filling. It only takes one of these instances to trip the SLI indicator, and the system will not try again until it's reset.

A new compressor from Arnott (rebuild kits weren't available back then), and I've been without in SLI light for about 6 years now! (really shouldn't have just typed that 'cuz I know what's going to happen...)