robhew86
Well-Known Member
Hi all,
Pulling my hair out over this now.
Began few weeks back, no issues with air susp at all..... Until rear height sensor snapped.
No problem, had 2 brand new rear unbranded cheap eBay £35 for the pair In the garage in the parts box, fitted both sides as the other side was on its last legs too. Been meaning to fit these for about a year as the MOT tester discretely said they were deteriating.
So when the sensor originally snapped..... Fault was a 'articulation validity' Which you would expect.
After new sensors fitted, one side was right up in the air at its natural stance, as requires calibration.
So ive calibrated the whole air suspension, front and rear, taking hours using the legend Saints L322 height chart as well as RSW All comms got them to within a couple of mm as it should be.
She Sits fine, adjusts into all heights absolutely fine on the spot, but drive off and the frigging dreaded fault appears after a couple of hundred yards up the road 'Articulation validity'
Now....if I plug in my Hawkeye diagnostic.... Go onto live data for the air susp....it reads the height sensors current position in MM.
The readings are somewhat different.....For example.
Front left -25mm
Front right. +30mm
Rear left +33
Rear right -25
The car is sitting dead level (give or take a MM or 2) so within the tolerances.
What is going on? Where is the BCU getting the readings from?
The Hawkeye readings were always different (fairly substantially). Before changing the rear sensors.
Any ideas/thoughts?? I was umm'ing and arrr'ing if it was the cheap sensors.....but they read fine and adjust as they should.
Thanks in advance
Pulling my hair out over this now.
Began few weeks back, no issues with air susp at all..... Until rear height sensor snapped.
No problem, had 2 brand new rear unbranded cheap eBay £35 for the pair In the garage in the parts box, fitted both sides as the other side was on its last legs too. Been meaning to fit these for about a year as the MOT tester discretely said they were deteriating.
So when the sensor originally snapped..... Fault was a 'articulation validity' Which you would expect.
After new sensors fitted, one side was right up in the air at its natural stance, as requires calibration.
So ive calibrated the whole air suspension, front and rear, taking hours using the legend Saints L322 height chart as well as RSW All comms got them to within a couple of mm as it should be.
She Sits fine, adjusts into all heights absolutely fine on the spot, but drive off and the frigging dreaded fault appears after a couple of hundred yards up the road 'Articulation validity'
Now....if I plug in my Hawkeye diagnostic.... Go onto live data for the air susp....it reads the height sensors current position in MM.
The readings are somewhat different.....For example.
Front left -25mm
Front right. +30mm
Rear left +33
Rear right -25
The car is sitting dead level (give or take a MM or 2) so within the tolerances.
What is going on? Where is the BCU getting the readings from?
The Hawkeye readings were always different (fairly substantially). Before changing the rear sensors.
Any ideas/thoughts?? I was umm'ing and arrr'ing if it was the cheap sensors.....but they read fine and adjust as they should.
Thanks in advance
