Audi Theft Prevention

[scott.john.mockry@bangate1.tek.com]

At the QCUSA event at Portland, OR a couple of weeks ago, one of the QCUSA members
who came down from Seattle had his 83 ur-Q stolen (briefly) during the middle of
the night (sometime early Saturday morning). The car thieves must have gotten
spooked because the car was found abandoned the next morning a few blocks 
from the Hotel where it  was taken. He was very Lucky to get his car back so
soon! 

To add some additional theft protection and make it more difficult 
for someone to steal my car, I normally install a "kill switch" that
disconnects the electric fuel pump from the ECU Fuel pump relay
control so that even if the car is hot wired
(steering column lock/switch bypassed) the car may start but will 
quickly die and not restart. 

The 86-90 5000/200TQ's with the MAC11/MAC14 ECU's
use terminal #21 to control the fuel pump relay. This wire can be 
disconnected with a switch to  disable the fuel pump.  My 89 200TQ
 has a factory alarm  system but it only keeps the starter from working 
during a theft. Aftermarket alarm systems could also be used
to activate this fuel pump disable feature.

The fuel pump toggle switch should be hidden to prevent 
accidental activation while driving or detection
by the thieves. Electronics could be used to make the switch
more intelligent and prevent fuel pump cutout after the engine
is running. The switch is a cheap system that I have found 
to be easier and quicker to activate than using one of those 
steering wheel locking/club devices. Some people have used
dummy dash switches to activate this cutout.

Just my $0.02 worth of theft protection
Scott M.