P38A Eas sensor

2000 4.0 auto
EAS has been fine for ages
Got a puncture on FR tyre and glad I dont have these spacesaver cr**y spares
Jacked her up with jack under chassis (I know I know) and now EAS throwing a wobbly
BUT
nanocom says LHR sensor out of range
Tried driving over very rough road (slowly) to see if that can clean the track
LHR goes to bump stops and no faults on dash.
When trying to see what the LHR sensor is reading she pumps up before telling me height is ok.
So my query is that if sensor is out of range how does it know to pump up????
Any thoughts gratefully appreciated
Ta

oakey said:

2000 4.0 auto
EAS has been fine for ages
Got a puncture on FR tyre and glad I dont have these spacesaver cr**y spares
Jacked her up with jack under chassis (I know I know) and now EAS throwing a wobbly
BUT
nanocom says LHR sensor out of range
Tried driving over very rough road (slowly) to see if that can clean the track
LHR goes to bump stops and no faults on dash.
When trying to see what the LHR sensor is reading she pumps up before telling me height is ok.
So my query is that if sensor is out of range how does it know to pump up????
Any thoughts gratefully appreciated
Ta

Click to expand...

Sounds like a glitch.. Any faults in the memory?
Was the ignition on at any point while it was on the jack?
I have mine on a scissor lift time on and off and never have I suffered eas wobbles with the wheels hanging.
If there is a fault in the nano delete and retest or go to the eas section on the diag and see if you have live info on the height sensors. It could be the sensor was worn and by a crap chance it may have given up... But this would have been the case if you were offroading and stretched its leg a little. The sensor sweep goes beyond the length of the shocks reach and can't be damaged.

Eas/inputs on nano... I only did it friday and I can't remember

oakey said:

2000 4.0 auto
EAS has been fine for ages
Got a puncture on FR tyre and glad I dont have these spacesaver cr**y spares
Jacked her up with jack under chassis (I know I know) and now EAS throwing a wobbly
BUT
nanocom says LHR sensor out of range
Tried driving over very rough road (slowly) to see if that can clean the track
LHR goes to bump stops and no faults on dash.
When trying to see what the LHR sensor is reading she pumps up before telling me height is ok.
So my query is that if sensor is out of range how does it know to pump up????
Any thoughts gratefully appreciated
Ta

Click to expand...

Unless there is a hard fault, it will always pump up, the EAS monitors the readings as it rises and closes the valves as the correct readings are obtained from the sensors. If one sensor is faulty, it should then log a fault.

Datatek said:

Unless there is a hard fault, it will always pump up, the EAS monitors the readings as it rises and closes the valves as the correct readings are obtained from the sensors. If one sensor is faulty, it should then log a fault.

Click to expand...

+1^

Thanks for replies
Ignition was not on when on jack.
I was expecting to see a reading of right now rather than when pumping up as I never asked it to pump up and it went down without being asked. Bags are not leaking as it stays up overnight no problem.
Today is weird too as when checking with nanocom it takes itself to high without being asked.
Also took itself to high when driving on rough road.
Also sinks to access at both rear bags but pumps up when checking with nanocom again on a rough road

oakey said:

Thanks for replies
Ignition was not on when on jack.
I was expecting to see a reading of right now rather than when pumping up as I never asked it to pump up and it went down without being asked. Bags are not leaking as it stays up overnight no problem.
Today is weird too as when checking with nanocom it takes itself to high without being asked.
Also took itself to high when driving on rough road.
Also sinks to access at both rear bags but pumps up when checking with nanocom again on a rough road

Click to expand...

Just because it stays up overnight, it does not mean the bags are not leaking, leaks open and close where the bag folds under.
I have seen the going to high when diagnostics are plugged in, not entirely sure of the cause, but removing the white connectors at the bottom of the left side A post and soldering the wires together cured it on mine.
If it goes to high on a rough road, most likely there is a duff height sensor creating a soft fault which will not show on diagnostics.

Thank you I can see me getting the soldering iron out soon
It can have a soft fault without showing on Nanocom?

Datatek said:

Just because it stays up overnight, it does not mean the bags are not leaking, leaks open and close where the bag folds under.
I have seen the going to high when diagnostics are plugged in, not entirely sure of the cause, but removing the white connectors at the bottom of the left side A post and soldering the wires together cured it on mine.
If it goes to high on a rough road, most likely there is a duff height sensor creating a soft fault which will not show on diagnostics.

Click to expand...

the white connectors are a must do!

oakey said:

Thank you I can see me getting the soldering iron out soon
It can have a soft fault without showing on Nanocom?

Click to expand...

A soft fault is one that is temporary, it will either disappear when the ignition is cycled or will go on to become a hard fault which is logged and can be seen by diagnostics.

Yes white connector next on list
When the back was down it didnt show a fault on dash and then pumped up when I asked nanocom.
That was without cycling ignition and nanocom was already plugged in as I drove