Is there a photo?
http://www.landyzone.co.uk/lz/f10/eas-box-vents-245242.html
There was someone who did a fantastic job on theirs, really look the biz-o
Will have to see if I can find the pic!
Is there a photo?
Another question: I'm wondering why the values for the Rear Left height sensor are significantly smoother that the other three ?
Pete
It's gone to wading height but it has not gone into hard fault mode and i don't believe it will when in diagnostic mode.Some more EAS data for anyone that likes Excel. . . .(see attached). . .. and does seem to point toward dodgy Driver Pack.
Today on way home from work I connected Nanocom again, and started logging. About 12-14 mins into the journey the height switch started flashing high-mode again . . . so the random changes do occur with EAS in diagnostic mode
Reset the EAS while driving at 65mpg (yes I know - naughty) and the EAS returned to normal.
So looking through the log file, I found something interesting. (approx. lines 440-680)
Assuming one second per data set logged by Nanocom, this is about 12 minutes after I started logging, which is quite close to when it happened.
- Rear Right sensor showing 10% above target height.
- RR valve & Exhaust valves open . . .BUT height not dropping.
- Definitely sounds like Driver Pack failing to actually open one or both of the valves. . . .
Another question: I'm wondering why the values for the Rear Left height sensor are significantly smoother that the other three ?
Pete
No was actually on inside lane, keeping the noise down because I was on conference call !!
The reason I posted earlier in this thread about adding suppression capacitors to Driver Pack Inputs, was because I wonder if the valves are both randomly opening & closing contrary to what the ECU thinks. The Logs only show the ECU's view of the system. I noticed that somebody posted elsewhere, that the driver uses Comparators & Mosfets, which are both susceptible to HF glitches on the 12V switching signal, and possible the 12V supply. Bad earthing & compressor motor interference could also cause issues.
When I get a chance I will put my Scope on the Input & Outputs, Motor power & 12V Supply lines to check what they look like for noise.
The "ECU Wake-Up" is probably me clearing the fault while driving. . . .remember Nanocom resets the ECU when you enter & exit the Inputs screen.
Also, will look at your Excel version tomorrow . . .
Thanks,
Pete
Driving with the right wheels on the outside lane rumble-strip?!
Or perhaps his is a fat barsteward and he loads the right hand side of the motor
Wouldn't that squash the right-hand side into the tarmac and leave the left-hand side bouncing in the air? Isn't it more likely to be the mother-in-law in the passenger seat?
Where are the moderators. Some images should not be allowed.
Hiya DatatekAs it's gone to wading height it's a soft fault, next stage it will drop to the bump stops and go to hard fault. Diagnostics is the only way forward. PM me for details.
Envelope symbol top right of the page.Hiya Datatek
How do I PM you, because I have now got the same fault.
It started off with the formidable BEEP, BEEP, BEEP, But it would still drive. Then all four lights on the ride height switch came on, and stayed on. Then the Little Car on the Dashboard, with an arrow. Ride height was very high, and now, its down on the bump stops, sat, more or less, on the tyres !!!
Hiya Datatek
How do I PM you, because I have now got the same fault.
It started off with the formidable BEEP, BEEP, BEEP, But it would still drive. Then all four lights on the ride height switch came on, and stayed on. Then the Little Car on the Dashboard, with an arrow. Ride height was very high, and now, its down on the bump stops, sat, more or less, on the tyres !!!
Did you change the air dryer ? sound's like a white powder issue valve block sticking open.Today during round trip to Ferndown (185miles), I had the "random high mode" about 5-6 times. Four times I managed to press the down switch in time and avoided the fault mode, but twice I missed it, and EAS went into fault mode. Reset each time with Nanocom & continued journey.
So for the last 50 miles I thought, lets try data logging on the Nanocom and catch the fault. . . . . . no further problems . . so my wife says "just connect it when you drive !
Does Nanocom usually prevent EAS faults while connected ?
History:
Already bypassed the white connectors in left footwell:- soldered joints instead of green corrosion.
Connectors in engine bay look good. Still need to check sensor connectors.
Compressor seals & piston seal replaced 3 weeks ago:- good pressure before & excellent now.
Replaced all seals in Valve block yesterday:- no more leak from exhaust outlet.
All height sensors give similar readings on Nanocom at all height settings. . . might be glitchy, but does't look like it on Nano.
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I now suspect driver pack strangeness but being an electronics engineer, I want to investigate rather than part-swap.
- So, firstly does anybody have an internal diagram for driver pack ?
- Are the 12V switched inputs from ECU filtered for vehicle noise ? (maybe the capacitors have dried out)
- Do the height sensor inputs to ECU have sensible low-pass filtering ? (I'm sure the ECU does not need to know every small bump on the road)
My thoughts are to start fitting additional capacitors to the ECU & Driver Pack inputs to remove random vehicle electrical noise. Many years ago I designed a variable wipe system form my old XJ6, and you would not believe how random the wipers were until I filtered the electronics properly.
BTW, In case anyone finds it useful, I just uploaded the Land Rover "EAS - System Information Document" I found on Nano forums, to the EAS sticky section in How-To's.
Pete
Did you change the air dryer ? sound's like a white powder issue valve block sticking open.
If you take the exhaust filter off the valve block and tap it on a black surface and see white specs then it's time to change drier and overhaul the valve block.thanks. I will see