You chose a great car to restore, indeed. Great things can come with great prices however. I also own a 94' Q45a... which coincidentally is also having suspension troubles. I bought my Q for $2500 a year ago and have since completed all of the repairs on a nearly $10k repair bill, except the active suspension. I purchased new accumulators from texasoil. A fellow whom you will want to get in touch with; he will help you sort through your active suspension woes. Unfortunately for me, I didn't realize the system also had a leak... it's now - finally at the dealership again to have them tell me exactly where the leak is in the system. The dealership will charge you up the ole' poop chute to have them fix it. If you like saving thousands of dollars buy recharged accumulators instead of new. As well, if you would like the service manual for your car, e-mail a member of this board named "elwesso". In short, he's the man and will hook you up

. To determine if there is anything else wrong with the suspension system you can run a self diagnostic:
=================1) with the car shut down, transmission in P, turn the key to 'on' do not crank. 2) within 10 sec of key ON, turn the N/H switch from N to H and back 10 times, stopping in N
First series are 10's, second series is 1's5 followed by 5 is "55" which means electricals are fine.
Full Travel = 5"If your accumulators are in need of replacement you'll have a harsher ride with less travel. =================
If you have any more questions, post them up here and one of NICO's real guru's will give you a helping hand.
Corey