I have personal experience with this 90-96 PV thing. When I was attending 25 Regionals over 5 years as a Judge, The 90-96 National Team Leader, Tom Barr and I shared a hotel room. You met him at your car's Top Flight Judging. I've "saved" about 20 PV's over the years by assisting Owners with their "15 minute fix". Here's a short list of common C4 and 90-96 PV failures

The lumbar bladders are in the bottom of the seat back. There are three compartments. They must each fill, and deflate in a manner in which each compartment can be discerned to be operating. I place my hand on the seat, and feel each compartment fill, then release individually as I watch the owner push each button to deflate. I also listen for the "pshhh" as he pushes the button. Edit: the 95-96 Lumbar with the buttons on the center console may be different in their operation, than I described above. I can't remember. But there's still 3 compartments, and the Judge will want to feel each compartment operate.

Rear hatch (coupe) lifters. Pop the hatch, the glass must go to the full-up position, on its own. Even in cold weather.  This is the #2 cause of PV failure over the years. Purchase a set of aftermarket lifters for your PV. Reinstall the OEM's for final Hill Award.

#1 cause of PV failure, and the item I have had the best success of rectifying during the 15 minute fix: Wiper blade pattern and travel.
Blades must not hit the windshield trim on the drivers side. 1-1/2" clearance seems to be the magic dimension.
Blades must not touch in the center when the tips pass. This is fussy if the glass begins to dry out during the test. They'll chatter, and touch. they can't touch.
The passenger blade must park below the hood line on its own. I usually encourage Tom  to accept a position, that puts the blade below the back edge of the hood, when crouching in front of the car, and looking in a line of sight parallel with the ground. It can be adjusted to make it lower than that.

Getting the adjustment correct in all 3 areas is a balancing act. Usually the tip clearance in the center is compromised to get parking position, without touching the reveal on the Drivers side. And when you're all done with that, put a new set of blades on, so there's no streaks. This was my most embarrassing non-save. We spent 20 minutes fixing the blade adjustment, and called Tom back over. He watched them operate, and said "You fail. The blades aren't contacting the glass". I didn't even notice the rubbers were shot. During 20 minutes, someone could have gone to NAPA and bought new rubbers.

Some other PV failures I'm aware of: HVAC door seals deteriorate and blow foam bits into Tom's lap. This can't be fixed in 15 minutes, but its happened on 3 90's. Sun visor locked-up and won't move. Headlight door bushings make them "lazy" and will pass Ops, but not PV. Rear cargo, center console, and glove box locking and latching: The door must latch on its own by gently closing it. Carpet can't bind it, nor can you push the button to make it latch. Console and glove box lids must not be loose when latched. Lock action must be smooth.

And my favorite "fail": One guy forgot to put the license plates on his car. Tom saw him back out of the trailer, and said "where's your license plate? That's a fail." The owner had his secretary fed-x them to him the next morning, and the PV was completed later that day for a Pass.

Good Luck with your PV.

|UPDATED|2/14/2013 11:34:13 AM (AZT)|/UPDATED|