SLS nightmare! Please help

I really don’t want to convert to springs… but before I’m forced too please help me diagnose my SLS nightmare!

I broke a ride height sensor and after replacing both sides with the battery disconnected, the old girl was sitting slightly higher on the left side.

So I purchased a Nanocom to adjust the height…
Now all the air has dropped out of the bags and no matter how I recalibrate the suspension, as soon as I unplug the Nanocom after successfully storing the height settings and waiting the obligatory 60 seconds, it reverts back to 000 and drops immediately.

I’ve replaced 2x ride height sensors with genuine land river ones
Both electrical connections to the RHS’s
Changed the SLABS ecu for another one
No faults looked on Nanocom for SLS,BCU or td5 engine.
SLS light is on the dash and now bongs at me repeatedly when I start it up

I’ve tried the recalibration process around 100 times in the utility menu and the setting menu, but no matter what I try I can’t get it to stay at the correct ride height!
The calibration in the setting menu always inflates the left side but has an error of unable to reach the target heights.

… and time is ticking away before I’m forced to revert to springs, which I’m not keen on but I need the truck back on the road!

Please help! You’re my only hope!!

Hi
I feel your pain, imin exactly the same situation, left sensor wire was broken, l replaced it and soldered in new plug. Left sir bag is at max height!! No matter what l do with the nano com l get same error as you, it can record the heights, but records the left as 080, even when it's at max and can't change it, the right records ok and l can change the height, but not the left!! I'm going to have another go tomorrow- ill keep you posted if l sort it??
Steve

This was very similar…no matter how many times I stored the height it would always drop to the floor….
So this issue was found out to be the plugs I had purchased were wired up wrong! They had power to read the height but no return to the SLS which stores the height. So I took them apart and put them into the correct pins and hey presto…sorted! No issues since and the off-road mode works perfectly.
Obviously not saying you’ve wired up yours wrong but just give that a look! The pins on one of my ride height sensors was also really corroded…the broken plug had let water and mud in so had to replace that too! Hope that helps mate