EAS Unlock calibration weirdness

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kooky_guy

kooky_guy

Well-Known Member
Posts
2,410
Location
Sandhurst, Berkshire
Hi Guys,

I've just spent the past couple of hours trying to set my suspension heights - they were all over the place! I'm using the calibration screen.

But, I've been really struggling with it and I think I've worked out why.

My front height sensors seem to be connected the wrong way round - so for example when I raise the FR, it actually raises the FL and vice versa.

Does that sound likely? I think I'm going mad.

If so, could anyone suggest where the connections might have got messed up?

It's bleeding freezing outside too!

Guy
 
Last edited:
The catch with suspension is that raising any one corner will affect all the other corners to some extent. However I would suspect that it's not electrical but that the pipes have got swapped over at the valve block, so the EAS thiks it is trying to raise the correct corner but the air is actually going into the opposite airbag.
 
Datatek said:
The catch with suspension is that raising any one corner will affect all the other corners to some extent. However I would suspect that it's not electrical but that the pipes have got swapped over at the valve block, so the EAS thiks it is trying to raise the correct corner but the air is actually going into the opposite airbag.
Click to expand...

Hi Keith,

I did wonder about that - I'll have to try and check it tomorrow as it's dark now. Need to find a diagram of which pipe goes where - hopefully Rave will have one.

It looks like the previous owner has got very carried away with the settings. They were all way higher than IrishRovers figures and no two corners were at the same physical height on any profile. I just can't get the front level!

Bleeding thing. I thought this was going to be a quick job!

Guy
 
kooky_guy said:
Hi Keith,

I did wonder about that - I'll have to try and check it tomorrow as it's dark now. Need to find a diagram of which pipe goes where - hopefully Rave will have one.

It looks like the previous owner has got very carried away with the settings. They were all way higher than IrishRovers figures and no two corners were at the same physical height on any profile. I just can't get the front level!

Bleeding thing. I thought this was going to be a quick job!

Guy
Click to expand...

Getting it just right can take ages, used to have the same trouble setting the corner weights on my race car.
 
The pipes are colour coded. Rear left RED. Rear right BLUE. Front left no code. Front Right GREEN. Reservoir VIOLET. It is pretty difficult to get the pipes on wrong because of how they lay. Have you had your valve block apart and put the solenoids in the wrong place?
 
make up a set of blocks to go betwix axle and chassis so it sits at the level you want when the air is out of the bags. read off what the sensors are saying and then input those figures into the relevant section.
 
rewmer said:
make up a set of blocks to go betwix axle and chassis so it sits at the level you want when the air is out of the bags. read off what the sensors are saying and then input those figures into the relevant section.
Click to expand...

That's what Land Rover do and it's cheating. Where's the fun in that it's too easy.:D:D:D
 
is that the same Landrover that when completing the design of the Disco 3, stood back in awe and wonder admiring their new baby - untill some bright spark asked the question "So how do we change the clutch then?" :confused:
 
rewmer said:
is that the same Landrover that when completing the design of the Disco 3, stood back in awe and wonder admiring their new baby - untill some bright spark asked the question "So how do we change the clutch then?" :confused:
Click to expand...
Yeah the very same. It's amazing what you can do with a length of 3x2 and a saw. And you don't even have to be on level ground. What a bonus.:D:D:D
 
Calibration blocks would be ideal but not practical at the mo. I'm just trying to resolve some weird handling issues and all 4 corners are at different heights. They were also all at least 3cm higher than they should be for the extended profile. Surprised nothing has broken!

Previous owner fitted some pointless emergency inflation valves. That could be when the pipes got messed up. I'll check them in the morning but as Keith says, it sounds a lot more likely than the wiring.

Does the ground have to be absolutely level? Nothing's level here! I've got it on the most level bit...

Guy
 
Level ground not needed; block it up as already said at the height you want for "normal", tell EAS to go to Access, thus deflating bags, dropping onto blocks, set the measured heights centre wheel-hub to arch as Normal in EAS
 
Well as far as I can tell the airlines are connected correctly.

The front suspension connections are the two at the front of the EAS box with the Green (FR) at the top and the blank (FL) at the bottom...?

That sound right?

Can't understand why it was doing what it was doing yesterday though. I'll have another go now I suppose...

I'm tempted just to reinstate the original settings and be done with it. Grrr.
 
kooky_guy said:
Well as far as I can tell the airlines are connected correctly.

The front suspension connections are the two at the front of the EAS box with the Green (FR) at the top and the blank (FL) at the bottom...?

That sound right?

Can't understand why it was doing what it was doing yesterday though. I'll have another go now I suppose...

I'm tempted just to reinstate the original settings and be done with it. Grrr.
Click to expand...

If pipes are correct and FL moves when you activate FR the solenoids MUST be transposed.
 
wammers said:
If pipes are correct and FL moves when you activate FR the solenoids MUST be transposed.
Click to expand...

How would that happen? Surely they can only fit one way round inside the valve block?

I'm not entirely sure that is actually happening now though - I've been trying again and I can't get the FR to respond to changing height values at all via the EAS Unlock software.

I also keep getting the error target heights are incorrect.

I can't get the car down to the correct access height either - it just won't go low enough!

It's almost as if all the height sensors are out of calibration. Perhaps I should just put the original values back in and just settle for getting it level at the wrong heights. Trouble is, the Standard height is about what Extended should be!

GRRR. Wish I hadn't touched the damn thing now.

Do I need the engine running all the time I'm doing this?
 
That's the beauty of using blocks.
You put the blocks in place, you let all the air out of the system.
The body settles onto the chassis at at fixed height (the blocks) and you then read off what the sensors are saying. Because the air system has no say in this height it doesn't mattere if the ground isn't totally level.
Put those figures in as one of your height settings, depending on the height of the blocks, and you know that those settings are correct. Then you can set everything else up from there.
 
Ok. I've put the original values back in and it's still giving the 'target heights are incorrect' error.

The Front right changes height when I change profile but doesn't seem to accept and changes in the calibration screen and it's too high in all modes.

Can't get my little head round this.
 
I've managed to get it almost back to where it was and almost level in all modes, but it's too high in all modes and I can't seem to do anything about it.

Does the fact that I'm constantly getting height sensor errors suggest I have a duff height sensor somewhere now? Even my EAS kicker is showing an invalid height sensor values fault.

I'm going to have a go at cleaning all the height sensor connectors and lubricating the linkages. Can't think of anything else to try.

As for doing it properly with blocks, anyone nearby got any?
 
Sounds like you're getting there, check/clean sensor connections can only help.

Best bet on blocks............ length of 3 x 2, B&Q, Wickes etc!!!
 
kooky_guy said:
How would that happen? Surely they can only fit one way round inside the valve block?

I'm not entirely sure that is actually happening now though - I've been trying again and I can't get the FR to respond to changing height values at all via the EAS Unlock software.

I also keep getting the error target heights are incorrect.

I can't get the car down to the correct access height either - it just won't go low enough!

It's almost as if all the height sensors are out of calibration. Perhaps I should just put the original values back in and just settle for getting it level at the wrong heights. Trouble is, the Standard height is about what Extended should be!

GRRR. Wish I hadn't touched the damn thing now.

Do I need the engine running all the time I'm doing this?
Click to expand...

Don't think you understand. By solenoids i mean the actual electro magnet that fits over the valve. The one with the wires to it. If the electro magnets are transposed FL FR this will give you your problem. Quite easy to do IF you don't mark their positions when you strip the block.
 
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