Holden VR Commodore was created in 1993.
The Holden VR Commodore is a large saloon car produced in the mid 1990s manufactured by General Motors - Holden Limited in Australia. They also produced a Utility vehicle.
remove the body control module
The spark plug gap for a Holden VR Commodore should be set at 1.0 mm. A new spark plug for this vehicle should be purchased from an auto parts store. Incorrect, gap is 1.5mm
VR has hydraulic adjusters, should not need setting. If it is rattling check oil pressure and look for weak lifters.
in the fuel tank.access from the front of the tank.side closest the diff
go to your local Holden dealer with your vin mumber which is at the bottom left hand side of your windscreen they will give you the pin number for the factory stereo.
I think you open it up and change it. Like it is so obver.
Remove the inside door panel and see what has happened. Only then will you know the problem.
why wont the wip ers on a vr Holden commodore turn off, its in the off position,but they keep going ,the only way you can turn them off is turn the car off ,when you start the car they come on. you switch them off with the little hand piece on the right of the steering colume and they just keep going.
Under the bonnet. Look for a relatively small black box with a cable running from the throttle to it.
Tutorial here http://forums.justcommodores.com.au/holden-commodore-how-s/3935-installing-stereo-into-vn-vs.html