I had the car on consult one week ago and they said the alignment was out based on the hicas angle sensor. I had the alignmnet checked one week befor eby the person who performed the one I got with the new tires. I decided to find a place that had the Hunter GPS9700 road force balancer and by chance they had the latest hunter alignment machine. They did a free check and the HICAS sytem was correct. the alignment was out.
I had the alignment done and now the car rides much better. I had noticed some wear on the tires and brought it to the original guys attention and he said I had the tires too low on pressure. BS, that is why I did what I did. Man you cannot trust anyone.
Anyway, I cannot get the HICAS system to activate the self test mode. I cannot even get it to move the rear tires. I move the wheel left and right five times then hiut the brake pedal 5 times and turn aout 10deg. Nothing. I am assuming that it should be noticable when the rear tires move?
Any suggestions?
HICAS Question
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Q45tech
- Moderator
- Posts: 14296
- Joined: Tue Apr 30, 2002 3:19 am
- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
The HICAS moves minutely less than 1/4 " TOTAL [1/8" to right and left is maximum].The self test without a Consult is tricky to see! Then you proceed with the next 22 pages of tests if it doesn't work.
As to technicans less than 1 in 50 [1 or 2 maybe at dealers sometimes none are qualified to deal with HICAS] just don't spend the time studying it because of rarity.
Same with Active suspensions, you are lucky if the dealer has anyone that truely understands all the workings of the system.
You MUST GET an alignment where the THRUST angle is 0.00 degrees................. really time consumming and difficult [may require lots of expensive parts replacements] and very few people can get it right and fewer owners will pay for it!
As to technicans less than 1 in 50 [1 or 2 maybe at dealers sometimes none are qualified to deal with HICAS] just don't spend the time studying it because of rarity.
Same with Active suspensions, you are lucky if the dealer has anyone that truely understands all the workings of the system.
You MUST GET an alignment where the THRUST angle is 0.00 degrees................. really time consumming and difficult [may require lots of expensive parts replacements] and very few people can get it right and fewer owners will pay for it!
-
Q45tech
- Moderator
- Posts: 14296
- Joined: Tue Apr 30, 2002 3:19 am
- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
Still too much, you gotta be a perfectionists here.........this is the angular drift amount on a perfectly flat road [non cambered] plus any absolute differences sise to side in other parameters..........gets multiplied by differences............everything must be equal with you sitting in drivers seat or the car will drift to a side of road.
The other problem is what is the alignment rolling down the road ---the thrust forces change with forward speed and accel/decel.............alignment only is measured sitting still
The other problem is what is the alignment rolling down the road ---the thrust forces change with forward speed and accel/decel.............alignment only is measured sitting still