EAS quickie

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stevebrookman

stevebrookman

Well-Known Member
Posts
390
I had a hard fault whilst towing on holiday-cleared it with my EAS lite kicker.
Now home - connected it to my lap top and the only thing in fault codes is "vehicle has been moved" and a 128 under F9
Am I right in thinking that the codes are not kept if I've used the kicker?

I'm suspecting a height sensor as it only faults when towing.

Regards

Steve
 
stevebrookman said:
I had a hard fault whilst towing on holiday-cleared it with my EAS lite kicker.
Now home - connected it to my lap top and the only thing in fault codes is "vehicle has been moved" and a 128 under F9
Am I right in thinking that the codes are not kept if I've used the kicker?

I'm suspecting a height sensor as it only faults when towing.

Regards

Steve
Click to expand...
As far as I know - correct codes deleted (or else it would still be in fault mode)

Vehicle Has Moved code is always there - it just means the vehicle height is different from when the EAS system last checked the heights...

Not sure what 128 under F9 means.....

If it only faults when towing - you could have a leak in the rear bags....when the weight of the trailer is applied, the system adds more pressure to the rear bags to make up for the rear sag - this extra pressure in the bags could be enough to show a weakness in the bag - if the EAS system can't keep up with the loss, either due to compressor overheat, or the system is leaking faster than it can fill it will fault out....

Next time it goes into fault - don't use the kicker - plug it into the EASUnlock software and read the fault code.....
 
Most likely a height sensor, there should not be more than about 100Kgs on the hitch, well withing the abilities of the P38. Do you lock the suspension when towing as directed in the manual?
I agree with SV8 that the airbags could be leaking if original, they have a life of 7/8 years 80K miles.

The Kicker clears all faults unless they return immediatly.
 
Thanks both,
All air bags were replaced last year, I keep the noseweight to 90kg-looking at it last night it seems to be nose up. Whilst towing at whitsun it did seem to see-saw now and again-it seemed the back would raise then the front and then drop back-it seemed to do this quite regularly. Never had it before in 6 years of towing.
Got a bloke coming tonight to have a look. Will keep you informed.

Cheers
Steve


Regards

Steve
 
stevebrookman said:
Thanks both,
All air bags were replaced last year, I keep the noseweight to 90kg-looking at it last night it seems to be nose up. Whilst towing at whitsun it did seem to see-saw now and again-it seemed the back would raise then the front and then drop back-it seemed to do this quite regularly. Never had it before in 6 years of towing.
Got a bloke coming tonight to have a look. Will keep you informed.

Cheers
Steve


Regards

Steve
Click to expand...

If the airbags are new, look for leaks where the pipes enter. Otherwise check the connectors in the EAS box.
 
Just an update.
Took car to local bloke who has worked on P38's for many years. Could detect no faults (kicker clears them). I asked him why the car was riding higher than it should be since I changed the air bags last year. He asked if I had gas shockers-I fitted Bilsteins around 5 years ago-he reckoned this would lift the suspension (when new bags fitted) and could cause a dodgy height sensor to go out of range especially whilst towing. He suggested I put the standard shocks back on. Luckily I kept the old ones which were in good condition.
I swapped them over and whilst in the garage the car was now riding at the correct height. In and out of the garage the height remained perfect.
Took it for a run this morning to work and it still looks slightly high so will measure it dinner time. I'll also put it on the PC tonight- but last time I looked there were no readings that looked incorrect.

Any thoughts?
I'm still suspecting a dodgy height sensor but cannot detect which one until it defaults.

Cheers
Steve
 
stevebrookman said:
Just an update.
Took car to local bloke who has worked on P38's for many years. Could detect no faults (kicker clears them). I asked him why the car was riding higher than it should be since I changed the air bags last year. He asked if I had gas shockers-I fitted Bilsteins around 5 years ago-he reckoned this would lift the suspension (when new bags fitted) and could cause a dodgy height sensor to go out of range especially whilst towing. He suggested I put the standard shocks back on. Luckily I kept the old ones which were in good condition.
I swapped them over and whilst in the garage the car was now riding at the correct height. In and out of the garage the height remained perfect.
Took it for a run this morning to work and it still looks slightly high so will measure it dinner time. I'll also put it on the PC tonight- but last time I looked there were no readings that looked incorrect.

Any thoughts?
I'm still suspecting a dodgy height sensor but cannot detect which one until it defaults.

Cheers
Steve
Click to expand...

Shocks should not/cannot alter the ride height unless they are spring assisted.
The readings won't help you, you need the measure and re-calibrate the actual heights from wheel centre to wheel arch rim:)
 
Thanks for the replies-it was sitting at 49cm whilst at work.

Came home ok and parked on hill outside the house. Jumped in went about half a mile to mothers and the front of the car was up as far as it could go whilst the rear was down. Front airbags must have been fully extended!

No EAS error. Pressed the down button on suspension and it dropped. Took another couple of minutes after driving off for the lights to stop flashing and get to normal height.

I think this see sawing was happening whilst towing as well-one minute the front was right up and then it seemed to go right down.
Still don't know what to do until I get an error.

Cheers

Steve
 
Thanks-that's what I measured.
It's the right up at the front I'm wondering about-it seems that you are lying down driving the car!

Cheers

Steve
 
Time to recalibrate the ride heights me thinks!!

Can be done using the EASUnlock software - it is a matter of adjust the sensor readings, take measurements, readjust readings, take measurements, adjust again, take measurements etc etc as the sensor readings are just data readings and not measurement readings, so a drop of 5 data points doesn't necessarily correlate to 5mm drop on the phsyical height...it is a matter of trial and error unitl you get it to reach the correct height.
 
Thanks,
I'll give it a go.I've got the laptop rigged up in the garage but unfortunately the garage is full of wood for the next week so will have to wait. It's the only level place I have as I live on a hill.
Just a quickie -When altering the ride height settings only the ignition needs to be on but I need to start the car to take a new measurement-is that right?
Again many, many thanks!!!

Steve
 
stevebrookman said:
Thanks,
I'll give it a go.I've got the laptop rigged up in the garage but unfortunately the garage is full of wood for the next week so will have to wait. It's the only level place I have as I live on a hill.
Just a quickie -When altering the ride height settings only the ignition needs to be on but I need to start the car to take a new measurement-is that right?
Again many, many thanks!!!

Steve
Click to expand...


You do not need to start the engine, just ignition on.:)
 
stevebrookman said:
Thanks for the replies-it was sitting at 49cm whilst at work.

Came home ok and parked on hill outside the house. Jumped in went about half a mile to mothers and the front of the car was up as far as it could go whilst the rear was down. Front airbags must have been fully extended!

No EAS error. Pressed the down button on suspension and it dropped. Took another couple of minutes after driving off for the lights to stop flashing and get to normal height.

I think this see sawing was happening whilst towing as well-one minute the front was right up and then it seemed to go right down.
Still don't know what to do until I get an error.

Cheers

Steve
Click to expand...


Could well be a driver pack problem which may not show any faults.
 
No-will give it a go!
Don't mind spending a few bob if needed as it's the first problem in over 6 years.

Thanks Keith,

Steve
 
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