I wont claim to be any expert on the subject , I did do an install of a Digital tach, but an aftermarket one on a Camry(I use the -ve on the coil, +12v from ignition circuit & an earth to a point on the chassis, and it works verrry niceyly). I'm pretty sure you only need the -ve on the coil or a tacho signal, not both. But someone feel free to correct me on that.
Tue, 08 July 2003 08:20
, I did do an install of a Digital tach, but an aftermarket one on a Camry(I use the -ve on the coil, +12v from ignition circuit & an earth to a point on the chassis, and it works verrry niceyly). I'm pretty sure you only need the -ve on the coil or a tacho signal, not both. But someone feel free to correct me on that.
