Rev counter not working

[Grandpa Joe]

Fitted the Gen90 and ITB kit to my ph1, everything works bar the rev counter. Any ideas?

Going to give KTec a call later about 5 ish to see if they know the reason.

 

[scottgilliland2003]

this happened a few years ago on a corsa i used to own

turned out it was the sensor that feeds the ecu with the RPM of engine

it should log in the ECU faults if you can get your hands on a OBD tool if not the sensor is only a few quid

*crank shaft sensor*

 

[Grandpa Joe]

I had to move 20 wires swapping from the standard ECU to the Gen90 ECU so I've been through what pin does what and the only ones I can narrow it down to are.

Moving 53 to 77 - Vehicle speed input. But that's an input so it shouldn't be that
Moving 70 to 77 - TDC engine speed information. This is an output, so is this what sends a signal to the rev counter?