extra fuel gauge

[Huw Powell]

> In my continuing quest to slowly convert my quattro to a rally car, i'd like to
> add a second fuel gauge...one right in front of my navigator.

> Anyways, can I just 'tap' into the two wires that power the original fuel
> gauge, or will this screw up the reading on both? ideally, it would be great if
> I could just run two wires behind the dash to the original fuel gauge...

doesn't sound as good as at first might seem.  As i recall the fuel
gauge (and coolant temp) circuits "start" at the inst cluster with a 10
volt regulator (to keep them consistent), then the current flows thru
the gauge, thru the wiring, and is grounded thru the sender.

so two guages in parallel will probably screw up the voltage divider
created by the resisitance of the gauge and the sender, and using two
regs and two gauges into one sender will also.  Still, there might be a
way...

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/