5 replies to this topic

[FTodaro]

Has any one wired up a set of the Longacre Smi stepper motor gauges. it has two power wires, Brown wire to ignition switch for switched power and a Red wire "to ignition switch so power is always on" "allows pointer to always return to 0 when shut off".

 

so is it one or the other, or do i need to hook up both one to switched and one to always powered?

[Johnny D]

This help ?

http://www.longacrer...144&article=SMiâ„¢ Stepper Motor Gauge Panel Wiring

 

Maybe cut and paste, all of it's supposed to be the link.

J~

[Stix37867]

In my experiences wiring gauges in other cars before, use a multimeter to find your switched power and non-switched power. I usually have success with the radio harness and I believe the miata has both required in the harness. I think I bought a cheap "aftermarket" radio harness so there was no splicing into the existing harness.

[Glenn Davis]

Red to hot and Brown to switched if you want the stepper motor to drive the pointer back to zero when you shut the motor down.

[FTodaro]

Thanks, that is how i read the directions but they could have been clearer, as they said red to ignition switch or unswiched power. they should have just said unswiched power from any source.

 

I have things torn apart so i do not want to have to go back in there once i close it up.

[Glenn Davis]

You can do it either way, as described in the directions.  However, the end results will be different operation of the gauge depending on the way you hook it up.