EAS Front left sensor

PPP38vouge · Mar 6, 2014

SpiggyTopes said:
Still sounds like a duff track in the sensor to me. I can't explain how the car software / ecu controls the sensor but Storey's software doesn't....

When you set the height from the dash control does front left change by the same amount as the others?

That is, if front right moves by say 15mm for each setting, does front left do the same (even if the height itself is incorrect)?

yes, the fronts both move on command from the dash switch to what ever height i set it to but the left front always remains higher.have swapped fronts over, made no difference so do not think it is sensor.

SpiggyTopes · Mar 6, 2014

So, how does the ecu know how to position the suspension except by feedback from the sensor?

If you hadn't swapped them over as a test, it points to a bent sensor arm or other damage allowing a false height reading to be sent to the ecu ....

I'm running out of ideas ... anyone?

Do you still have the old sensors to try?

BTW, what year is it?

PPP38vouge · Mar 6, 2014

SpiggyTopes said:
So, how does the ecu know how to position the suspension except by feedback from the sensor?

If you hadn't swapped them over as a test, it points to a bent sensor arm or other damage allowing a false height reading to be sent to the ecu ....

I'm running out of ideas ... anyone?

Do you still have the old sensors to try?

BTW, what year is it?

thanks for you reply, yes have old sensors but it was the same so i changed for new. The car is 2000 4.6, like you i am completley stumped. Have a good look underneath and can see no damage.

Datatek · Mar 6, 2014

An 8 bit difference side to side is not that unusual. When you calibrate the suspension, if you just change the value on that corner and write back a lower bit count for that corner, does it not drop in response?

PPP38vouge · Mar 6, 2014

Datatek said:
An 8 bit difference side to side is not that unusual. When you calibrate the suspension, if you just change the value on that corner and write back a lower bit count for that corner, does it not drop in response?

hi datatek, no, that's the problem it just will not lower at all. Always sits half inch higher than other side.really strange. All others move on command.

SpiggyTopes · Mar 6, 2014

So, what is the difference signal wise between the rocker level switch on the dash and the laptop connected to the ecu?

wammers · Mar 6, 2014

PPP38vouge said:
Hi, just trying to get a level front. I know the bit numbers will never match I just want the front to be as level as possible and am confused as to why the front left will not move on command.

As i said earlier heights are plus or minus 7 mm and ideally with a bit count within 2 side to side. But that is utopia. You may never get car absolutely level. To get the front level which is important to minimalise dropping when valves open to equalise pressure, you may have to lower rear at the opposite corners as needed to achieve that. Where the rear ends up is then where it ends up, as long as it's within the plus or minus 7 mm side to side it is normal.

Datatek · Mar 6, 2014

PPP38vouge said:
hi datatek, no, that's the problem it just will not lower at all. Always sits half inch higher than other side.really strange. All others move on command.

Using the "Go To" function in the calibrate tab of the EAS software, can you command it to access height, motorway height etc?

PPP38vouge · Mar 6, 2014

Datatek said:
Using the "Go To" function in the calibrate tab of the EAS software, can you command it to access height, motorway height etc?

yes, when i change heights using the ( go to ) function in the calibrate tab it moves no problem plus when i use (get sensor heights) it changes ok, i just do not under stand why front left is higher. Not sure if this is relevant but today when i got home from work i had it locked in motorway mode (inhibit switch on) i took a measurement of the front and they were both the same height? but, when i turned inhibit switch of and took it standard height it reverted back to higher front left. when i am calibrating and make changes using software i can here the valves clicking and it seems as if the height is trying to change but its like its sort of stuttering, sorry but its hard to explain, then when i take a measurement its still the same. i have tried calibrating by changing the value by 1 and writing it and also changing the value by 5 and writing it, right down until its out of range for the ECU. I have a spare driver pack that i am going to swap over at the weekend, do you think it would be ok to bring the front right up the half inch to get as close as i can to match the front left? just want to get within the 4-7 mm tolerence.
Thanks in advance.
Paul.

SpiggyTopes · Mar 8, 2014

Any news?

Do tell!

Datatek · Mar 8, 2014

PPP38vouge said:
yes, when i change heights using the ( go to ) function in the calibrate tab it moves no problem plus when i use (get sensor heights) it changes ok, i just do not under stand why front left is higher. Not sure if this is relevant but today when i got home from work i had it locked in motorway mode (inhibit switch on) i took a measurement of the front and they were both the same height? but, when i turned inhibit switch of and took it standard height it reverted back to higher front left. when i am calibrating and make changes using software i can here the valves clicking and it seems as if the height is trying to change but its like its sort of stuttering, sorry but its hard to explain, then when i take a measurement its still the same. i have tried calibrating by changing the value by 1 and writing it and also changing the value by 5 and writing it, right down until its out of range for the ECU. I have a spare driver pack that i am going to swap over at the weekend, do you think it would be ok to bring the front right up the half inch to get as close as i can to match the front left? just want to get within the 4-7 mm tolerence.
Thanks in advance.
Paul.

If all the height functions work from the button in the car and from the go to function in the EAS software, I can only guess that you are trying to take it out of range, are you sure your height measurements are correct? The ground needs to be flat and the tyre pressures correct.
Can you adjust the setting for that corner at wading height or motorway height?

EAS Front left sensor

PPP38vouge

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SpiggyTopes

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PPP38vouge

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Datatek

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PPP38vouge

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SpiggyTopes

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wammers

No longer with us, RIP

Datatek

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PPP38vouge

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SpiggyTopes

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Datatek

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