L322 l322 eas calibration issues

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dwarfer

dwarfer

Well-Known Member
Posts
437
Location
sussex,by the sea
hi
im still new on the forum and having trouble navigating and getting anywhere so i thought id ask you a question,
when a l322 goes into eas height calibration mode and it inflates itself, should it inflate equally? ie the front be similar plus or minus a couple of mm and lower for the rear plus or minus couple of mm, but essentially equal side to side ?
because when mine goes up in calibration mode the nsf is 799/800mm osf 815/816/820mm nsr 757mm
osr 769/770mm,generally this is what it inflates to.
then once the real heights are inputted and its sorted itselt out the car is always higher on o/s no matter what i do, is it a duff ecu or could it be dodgy height sensors? they read 3,5volts fr and 1.8/2.0volts on the rear and all are free n greased, doesnt seem to be any water ingress or damage or chaffed wires
i had no issues with the car until the front leg burst, and after fitting the new leg the issues started,all faults were cleared and battery disconnected etc,no codes present.
if you can offer any insight id love to hear,
 
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EE46BA3F-8BE9-4C2F-A037-4D7D8D47E59D.jpeg
 
I have indeed on more than one occasion. I can see why the heights are different when you go into calibration mode but once the values are input it should resolve that. What diagnostics are you using? I think the snapon is a bit iffy for EAS. Also make sure the car is on a level surface or that will screw things up. My block drive has sunk over years due to 2 x Disco's and the L322 so I have to go to the local supermarket car park :)
 
backinblack said:
I have indeed on more than one occasion. I can see why the heights are different when you go into calibration mode but once the values are input it should resolve that. What diagnostics are you using? I think the snapon is a bit iffy for EAS. Also make sure the car is on a level surface or that will screw things up. My block drive has sunk over years due to 2 x Disco's and the L322 so I have to go to the local supermarket car park :)
Click to expand...
Was going to have a look into this this afternoon but by the time I had found pencil, paper, tape measure and pluged in my foxwell nt 530 my hands were bleeding cold couldnt hold the pencil so gave up !
 
in true red dwarf fashion...
additional..
calibrating the l322 sometimes it goes up at the front and a little at the rear... then only the front.. since last inputs i had nsf pointing at the sky and the rest on the floor..
its getting comical
battery is now disconnected and will try some more tomorrow...
i now understand why the people i wrongly contacted on here about the cars issue said ' dont have one,i dont wont one..ever!'
 
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hi there out there
i need an idiots guide to the l322 eas , how does it work ?
i.e what tells what to do what , and when.
does the ecu do it all or are the 4x sensors telling it what to do
and what should i expect in mm from wheel arch to bottom of rim whilst in calibration mode f + r
as im getting plus 15/20mm (o/s) higher every time
 
IMO there is no set height for calibration mode. I suspect the car will go to a height determined by the voltages received from the height sensors then once you have input the actual heights into the Foxwell it then calculates from known values.

If you do a search on here for the RAVE manual and download it there are lots of pages describing the EAS.
 
Given that @dwarfer tells me he has trouble finding his way round the forum @backinblack down loading rave off here might not happen you can get cd copys on the bay for not much money which maybe a better bet. My copy of rave mentions the cross link valves but no mention of what they do or when they come into eas operation on L322, think the p38 eas is covered better on my rave.
 
@kds Is this the same as in your copy of RAVE.


The cross-link valves are located at the rear of the front RH wheel arch, behind the liner for the front valve and at the
top of the rear RH wheel arch, behind the liner for the rear valve. The valves are attached to the body by three fixing
and are rubber mounted to isolate solenoid noise.
The cross-link valves comprise a single large solenoid valve with connections to the LH and RH air springs and also
connections for each air spring from the reservoir mounted valve block. The solenoid operated valve is controlled by
the air suspension ECU. When the solenoid is energised, the cross-link valve connects the two air springs together,
allowing air to flow between them if required. This provides additional articulation of the suspension improving the offroad
capabilities of the vehicle and an improvement in low speed ride comfort.
The air suspension ECU senses that the vehicle is off-road by comparing rapid changes in signals from the height
sensors. The operation of the cross-link valves is fully automatic, requiring no driver intervention.
The cross link valves are only operated at vehicle speeds of 12.5 mph (20 km/h) and below. At vehicle speeds above
12.5 mph (20 km/h), the cross link valves remain closed.

Valve Block
The five way air suspension valve block is located under the RH sill of the vehicle, and is mounted forward of the air
reservoir. The valve block is held in place on the air reservoir support bracket by 3 studs and secured by nuts. The
studs are bonded into rubber mounts which isolates solenoid operation from the vehicle.
The valve block contains five solenoid operated valves which are controlled by the air suspension ECU. Four of the
valves, known as corner valves, control the air flow to and from air springs, via the cross-link valves. The fifth valve,
known as the reservoir valve, controls the air pressure supply from the reservoir to the air springs, via the corner
valves and cross-link valves and also from the compressor to the reservoir.
Removal of the valve block will require full depressurisation of the air suspension system. The valve block is a nonseviceable
item and should not be disassembled.
 
backinblack said:
@kds Is this the same as in your copy of RAVE.


The cross-link valves are located at the rear of the front RH wheel arch, behind the liner for the front valve and at the
top of the rear RH wheel arch, behind the liner for the rear valve. The valves are attached to the body by three fixing
and are rubber mounted to isolate solenoid noise.
The cross-link valves comprise a single large solenoid valve with connections to the LH and RH air springs and also
connections for each air spring from the reservoir mounted valve block. The solenoid operated valve is controlled by
the air suspension ECU. When the solenoid is energised, the cross-link valve connects the two air springs together,
allowing air to flow between them if required. This provides additional articulation of the suspension improving the offroad
capabilities of the vehicle and an improvement in low speed ride comfort.
The air suspension ECU senses that the vehicle is off-road by comparing rapid changes in signals from the height
sensors. The operation of the cross-link valves is fully automatic, requiring no driver intervention.
The cross link valves are only operated at vehicle speeds of 12.5 mph (20 km/h) and below. At vehicle speeds above
12.5 mph (20 km/h), the cross link valves remain closed.

Valve Block
The five way air suspension valve block is located under the RH sill of the vehicle, and is mounted forward of the air
reservoir. The valve block is held in place on the air reservoir support bracket by 3 studs and secured by nuts. The
studs are bonded into rubber mounts which isolates solenoid operation from the vehicle.
The valve block contains five solenoid operated valves which are controlled by the air suspension ECU. Four of the
valves, known as corner valves, control the air flow to and from air springs, via the cross-link valves. The fifth valve,
known as the reservoir valve, controls the air pressure supply from the reservoir to the air springs, via the corner
valves and cross-link valves and also from the compressor to the reservoir.
Removal of the valve block will require full depressurisation of the air suspension system. The valve block is a nonseviceable
item and should not be disassembled.
Click to expand...
Nothing like that on my rave copy, just where they are and remove/refit thats all, so maybe mine is an old copy.
 
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