I believe the stored target heights (especially on the front) need to be withing 2 bits of each other - as when you come to a stop, it briefly opens both front valves to equalize the pressure between the front air springs. (I'm guessing to try to make sure the headlights are level and not shining randomly off).

If you have target heights more that a couple of bits out then you might see the 'target heights incorrect' message - or if they are outside the expected range for that particular height.

As to the height it actually reports as sitting at - well, that might be a bit off from the 'target', but again especially on the fronts, they should be withing a couple of points of each other.

Hope this helps.

Thank you gents. Being Monday I forgot to bring my laptop to work but will remember it tommorow and get it plugged in and upload some photos.

I only tried to adjust the high setting to start with as this was at the top of the list and see what happens

Afternoon again gentlemen and others.

Firstly apologies for the glare in the photos, yesterday was brighter than it is today.

The bottom photo is what i found the heights at and also i was getting incorrect heights as a fault.

I changed the heights to some i had seen on a youtube video to give me a starting point and i got rid of the incorrect height fault, i assume to the figures being closer together.

I am yet to get the calibration blocks out because i have noticed i can not level it out and the back right corner seems to not move or very randomly.

I have checked again for leaks and have none on the bags or pipe work

I have new bags on all 4 corners as when i got the project she had been butchered with manual inflaters. was riding very high to unstable height and Gilbert had spotted they had cut out the thermal overload so the pump would run assuming even thought the bags were leaking.

The wiring has been repair, the compressor refurbished, dryer re done, new bags on each corner.

That leaves me with the actual block and imagine height sensors.

Really odd height readings will be down to the height sensors. It may be that one of the arms is bent so it is reading on a different section of the track (they are only a simple potentiometer) or it has been fitted wrong so at a different angle to what it should be.

I thought i had labelled up each manual inflator correctly to which corner it was and then plumbed it back into the EAS housing in the right order.

Again when i got her she had been butchered with an ECU bypass, some scrote had cut the cats off the exhaust, key fob battery been packed out with silver foil so all doors etc locked, she has been a mess but she is getting better.

When i press the get height reading options, it raises up and down and seems to square off. The readings on the height sensors are very different to whats on the calibration page

and also both sides seem to be alot further apart. Im not sure what tolerance you can have between front left and front right etc.

i didnt take a photo at lunch, bloody idiot. i will try and get one at 4.30 on my next tea break so i can show what the sensors are actually coming back with

Morning Gents

So i managed to get time to take a photo of what the heights are reading.

Few strange things that need to ask about.

1. For example it was suppose to be at standard height, but the readings dont match the figures on the calibration page

2. when pressing get heights, is it suppose to rise and fall as if it is going through the different stages

3. when i press down on some of the corners......it actually goes up and then sometimes if i press up, it also goes up

4. i took photos of the height sensors, they all look pretty straight and each side matches the angles they are set up at

So gents I have swapped out my valve block but I have noticed my rear right height sensor is bolted to the mount front to back horizontally

The rear left is bolted vertically

It is an N reg P38 so assume it has the older type of height sensor.

Which one is mounted correctly as I'm still having issues with setting the heights

Are they both the same? Can't remember which way round but one type has a flying lead with a dangling plug (early I think) while the other has a plug on the sensor itself. You may have one of one type and one of the other.

For what it's worth I had similar experiences turned out the linkages were seized up with crap so after a good soaking with GT85 spray and working them they freed up ---- not saying you have that issue but maybe worth a check

Ooo I never checked if the sensors are different. I would say the fly lead us the older version as the drivers side certainly looks that way.

Will check the passenger side next time.

Also thanks for spray idea. Worth a shout indeed

Can you mix old style height sensors with new type. I.e pre 97 and post 97

I'm just wanting to try and get this suspension behaving properly so I can start looking to get it in for an mot.

Looking at the parts list pictures, the mounting angles are different which might explain why yours are bolted on differently. I think I have seen mention of a mounting plate, which the parts list doesn't show, so that may be to allow you to fit a later sensor to an earlier car (or the other way round).

On mine until I sorted out which way up they should be nothing worked properly.

The rear ones should have the lead coming out of the top facing slightly backwards. The fronts depend on whether you have the original ones in bakelite boxes or the later ones with a bit of tin foil round them. The early ones have the fly lead facing up.

Hi David

Thanks for that

So both my rear are the older type. With the lead and the plug attached to the inside of the wheel arch

It is just that 1 is bolted horizontally and the other vertical

Thanks for the lead position. That helps alot. I will look again to see if they do match or i may just remove both and re fit if I can

So both rear sensor the lead is coming out the top towars the back.

I noticed that both have three mounting holes on the sensor.

The drivers side rear which is bolted horizontally with the empty bolt hole towards the top

The passenger side which is bolted vertically on the mount has the empty mounting hole towards the back of the car.

In reality should they both be mounted the same way.

Except the lead should be towards the back on one side and pointing towards the front on the other

A couple of pictures mine may help.

The first is the R hand side

This is the L hand side