Sounds like you've tapped into a 12 volt source which has some draw on it
already.
Whenever you're hitting the brakes (tail lamps turn on) it pulls the voltage
down. This
change in power to your transducer is being translated into an output shift,
and your
gauge shows it as a temperature change. I'd try giving your gauge it's own
power line.
Seth
#1544
On 7/23/01, at 1:14 AM, Ryan Rodgers <bricklin_2568@hotmail.com> wrote:
>
> Ok,
>
> On #2568, I have Digital Intellitronix gauges, on the water temperature
>gauge. The temperature always raises when I turn an outside lighht on.
>When I hit the brakes, temperature raises. when I let off the brake, the
>temp goes back to where it was. when the reverse lights are on temperature
>raises. headlights and parking lights and turn signals the same thing.
>when I unluged the wire to the brake pedal that goes to the brake lights, I
>pressed the brake and the temp stayed the same. So I'm not sure if thats
>the way it should be? Its a digital guage and it only raises about 4
>degrees when a light comes on. but when you got your headlights on and press
>the brake it raises pretty good. If my enigne didn't overheat so easy I
>wouldn't care but it gets up there pretty high when I'm driving. So do I
>have an electrical problem? or is this the way it should be? If anyone
>knows I could sure use the help.
>
> Ryan #2568
> Rodgers
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