Gauge voltage and Fuel relay with AA classic install
Any IVR you get should be marked 12 volt in, 5 volt out, and ground.
On back of inst' panel, the round harness connector has a locating key in its center. Fuel gauge wire is always dark blue and in this case, directly above the key at 12 o'clock. The switched 12 volt wire feeds nothing more than the OEM limiter. It is blue with white tracer and at about 9 o'clock position of round connector. It will go directly to your IVR no matter where you decide to place it.
One copper trace on the board ties all 3 thermal gauges to the 5 volts. You wont have a wire color or trace from round connector to here. 5 volt output from your IVR can go to any one of these 3 gauge posts. Circuit board does the rest. I use ring terminals, 10-32 hex nuts and a toothed washer on top of the original speedy nut for secure connections to gauge posts.
A solid state IVR doesn't require the noise capacitor so removing it provides a 90 degree push on terminal with short lead that you could use for 1 of the connections. I save those terminals for other uses since its a #10 and nearly impossible to find.
Any IVR you get should be marked 12 volt in, 5 volt out, and ground.
On back of inst' panel, the round harness connector has a locating key in its center. Fuel gauge wire is always dark blue and in this case, directly above the key at 12 o'clock. The switched 12 volt wire feeds nothing more than the OEM limiter. It is blue with white tracer and at about 9 o'clock position of round connector. It will go directly to your IVR no matter where you decide to place it.
One copper trace on the board ties all 3 thermal gauges to the 5 volts. You wont have a wire color or trace from round connector to here. 5 volt output from your IVR can go to any one of these 3 gauge posts. Circuit board does the rest. I use ring terminals, 10-32 hex nuts and a toothed washer on top of the original speedy nut for secure connections to gauge posts.
A solid state IVR doesn't require the noise capacitor so removing it provides a 90 degree push on terminal with short lead that you could use for 1 of the connections. I save those terminals for other uses since its a #10 and nearly impossible to find.
