Hi, I have a challenging install and need some advice.

I am on my second Fitech efi install, 1st one 2016.

This one is a 600 power adder with inline fuses.
I cannot get a RPM/Tach signal from the coil to the ecu.
Hand held set to TACH and saved it multiple times.
I have a ground cable direct from unit to battery.
12v supply direct from battery, voltage at coil is fine, very little voltage drop during cranking - run straight away.
I have replaced the blue cable with shielded cable and grounded the shielding.
I tapped the cable end on the positive side of the coil, no response.
I have checked continuity of the blue cable and checked condition into the ecu.
I am thinking a mis-match from handheld to ecu as I found a number of odd parameters in the set up.
Cal_file are dated 18/08/2023, I open the file to find T210 dated 28/10/2021.
Cal_info are dated 18/08/2023, I open the file to find several different dates.
Version of software on handheld is GD_V1.53
Handheld is newer type with 2 dots one side and 5 holes the other, see pictures

Some insight of what to do next will be greatly appreciated.
Cheers,
Pratto

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