I have track day tomorrow so I tried to wire up a Gizzmo Tacho Recall to my R32GTR 93 Vspec.
There are only 5 wires and the instruction seems easy.
Red- ECU power
Black - ECU ground
Green- from ECU tacho
Blue - to ecu tacho
White- not used, for launch control module
The instruction that came along with it showed where the power, ground and tacho pins are in the rb26dett. The power and ground are spot on. RPM is on pin 7. Checked the manual and sure that is the tacho speed signal. I sliced this and connect the Gizzo in series according to the instruction ie green to ecu and blue to tacho.
I started the car and the unit does it's rountine flash thing. Started the car and the tacho works fine. I pressed the 2 buttons on teh gizzmo unit, as instructed, nothing happen. I rechecked the wire and then even swop them around and still could not adjust the unit. Could it be faulty?
So I disconnected the unit. Left wirefrom pin 7 disconnected and started the car. It idled and rev fine. The tacho still work as normal So I resoldered pin 7. :confused:
Is wire 7 the tachometer drive signal? Has my car got some different wiring system for the tachometer?
Has anyone installed the Gizzmo tachoshift recall? What pin did you use?
Many thanks in advance.