strange issue with my 2000 LS400 on air
Setup, 5 gal tank, twin 380cs, vu4 manifold, dakota digital management. 3/8 line, d2 racing double bellow bags all 4 corners. 120/150 switch.
ride height is at 80 front 65 rear.
the issue is when airing up. I have 3 settings, full dump (bags at 16 psi), ride height, and full height.
when from full dump going to ride, if i press the preset, it attempts to hit the target psi, will usually get there, but the car is still way too low. have to bring bags to almost 100, then lower it back down to ride height.
And if i go from ride height to full height, well it wont reach it, controller will time out sometimes.
if i try to go full height from dump-forget it, wont reach it.
From dump to ride when i hit the auto height button, the pressure will drop below 120 and compressors will come on. If i want to get to ride height quickly form dump, i have to raise front first, then rear.
Sorry for the haggered sentences, bear with me.
WHat are your guys thoughts?
i also thought a higher tank pressure would help. afterall its a fairly small tank for 4 double bellows and 3/8 line.
so i installed a 150 off 200 on. that didnt work, at all. 215 psi not off, down to 0 psi not on. old swithc works fine. Also the vu4 dindt like it too much, would not pump one corner, or fail to air up at all.
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Setup, 5 gal tank, twin 380cs, vu4 manifold, dakota digital management. 3/8 line, d2 racing double bellow bags all 4 corners. 120/150 switch.
ride height is at 80 front 65 rear.
the issue is when airing up. I have 3 settings, full dump (bags at 16 psi), ride height, and full height.
when from full dump going to ride, if i press the preset, it attempts to hit the target psi, will usually get there, but the car is still way too low. have to bring bags to almost 100, then lower it back down to ride height.
And if i go from ride height to full height, well it wont reach it, controller will time out sometimes.
if i try to go full height from dump-forget it, wont reach it.
From dump to ride when i hit the auto height button, the pressure will drop below 120 and compressors will come on. If i want to get to ride height quickly form dump, i have to raise front first, then rear.
Sorry for the haggered sentences, bear with me.
WHat are your guys thoughts?
i also thought a higher tank pressure would help. afterall its a fairly small tank for 4 double bellows and 3/8 line.
so i installed a 150 off 200 on. that didnt work, at all. 215 psi not off, down to 0 psi not on. old swithc works fine. Also the vu4 dindt like it too much, would not pump one corner, or fail to air up at all.
what type of bag do you have? where is your pressure sensors? and how big are your air lines?
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what type of bag do you have? where is your pressure sensors? and how big are your air lines?
bhsuperlow;506790 wrote:what type of bag do you have? where is your pressure sensors? and how big are your air lines?
its listed there.
pressure sensor is mounted on the tank. from tank a line goes to a water trap then to the manifold. max 2 feet of line.
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[QUOTE=bhsuperlow;506790]what type of bag do you have? where is your pressure sensors? and how big are your air lines?[/QUOTE]
its listed there.
pressure sensor is mounted on the tank. from tank a line goes to a water trap then to the manifold. max 2 feet of line.
i think he means the pressure sensors for the bags. is the vu4 v2 with pressure sensor provisions for pressure sensors, or are the sensors mounted between the bag and the manifold? dakota is a pressure based system, could be something wrong with the sensors, or the dakota unit itself.
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i think he means the pressure sensors for the bags. is the vu4 v2 with pressure sensor provisions for pressure sensors, or are the sensors mounted between the bag and the manifold? dakota is a pressure based system, could be something wrong with the sensors, or the dakota unit itself.
brainneeded;506800 wrote:i think he means the pressure sensors for the bags. is the vu4 v2 with pressure sensor provisions for pressure sensors, or are the sensors mounted between the bag and the manifold? dakota is a pressure based system, could be something wrong with the sensors, or the dakota unit itself.
my dakota has capability of height sensor as well, dindt get around to installing that yet though.
anywway, the pressure sensors are between the manifold and bag, about 4" away from the manifold. each bag has its own sensor.
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[QUOTE=brainneeded;506800]i think he means the pressure sensors for the bags. is the vu4 v2 with pressure sensor provisions for pressure sensors, or are the sensors mounted between the bag and the manifold? dakota is a pressure based system, could be something wrong with the sensors, or the dakota unit itself.[/QUOTE]
my dakota has capability of height sensor as well, dindt get around to installing that yet though.
anywway, the pressure sensors are between the manifold and bag, about 4" away from the manifold. each bag has its own sensor.
could be the unit itself. i remember one of the guys on here had issues with their system, even after they sent him like 2 new brains.
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could be the unit itself. i remember one of the guys on here had issues with their system, even after they sent him like 2 new brains.
