Air Suspension Problem

[LVR]

Originally Posted by Madwelshman

Does anyone know what causes active plausibility, this has now come up after going around a roundabout, reset the code and it did it again two days later and once again going around a corner.

Getting to the point I want to blow it up ������������

Did you look at the offsets with INPA? If it's out of range it will keep failing and reset won't work.

[Madwelshman]

It should not be that excessive on a curve to cause that and they are new sensors and regulator rods
Just wondering if any other sensors could affect it bringing up this fault

[LVR]

Originally Posted by Madwelshman

It should not be that excessive on a curve to cause that and they are new sensors and regulator rods
Just wondering if any other sensors could affect it bringing up this fault

Believe me I know your frustration but it’s not the sensors that cause it. The value if out of range will not be changed by putting a new sensor on, and all that’s happened is you’ve got it running whilst the offset is incorrect.

You can replace components all day but as I found if you don’t address the offset value you’re wasting your time.

Any time you then cause suspension travel eg going over a kerb at anything but square on or a sloping corner the system doesn’t know where to go back and up comes a fault.

Have a look at the values and see what you’ve got.....if they are correct then it’s time to check voltages from the sensor back to the module. You can do this live by getting someone to move the suspension (eg sit on bumper) and see changes in voltages at sensors.

[Madwelshman]

Thanks LVR

I know the offset on three wheels was zero but the one that was causing the issue was varying between -3 and 1.

I have ordered the INPA software to see if this helps better than the snap on unit a friend has, I did check the wiring but could not see any damage to it but understand it could be the plug.

I replaced the valve unit because the front left was showing open that’s now good,
I replaced the compressor head and seal because I was only getting 11 bar, now I get 16 bar so that’s good.
I replaced the sensors and rods because I thought the sensors may be faulty due to the regulator rods being stiff.

With the voltage I think they were similar, around 2.5 v but will check when I get the software and let you know how I get on

Regards
Mad Welshman

[SlickGT1]

I bet we all have the same front left sensor failing and going out of range.

[Madwelshman]

It’s looking like this is a common problem, that no one has a solution for

[LVR]

Originally Posted by Madwelshman

It’s looking like this is a common problem, that no one has a solution for

Well... I fixed it on mine...

[SlickGT1]

Originally Posted by LVR

Well... I fixed it on mine...

How did you get the offset back in range bit by bit. Was this all done in Inpa?

[LVR]

Originally Posted by SlickGT1

How did you get the offset back in range bit by bit. Was this all done in Inpa?

Yes, I used INPA to adjust only that corner bit by bit by doing the ride height reset and only entering values on that corner. Took a few go's as mine was out by quite a bit. Then I used ISTA to do a EHC reset (although I understand INPA can do that too?) and it played nicely ever since.



Until of course other components failed (but that's another thread/story)....

[Madwelshman]

Hope to have the software this weekend instead of using snap on unit, should give me more information ��