Ultima Wiring Harness Observations and Upgrades

[Graham-P]

Clive, call me Mr Picky but where's the wiring for the mirrors?

[CanAm Dave]

Thanks Clive

I look forward to comparing it to the one I have just bought from Jack in the US. I've only spotted one fault on it so far. The rad thermatic switch should be connected to positive and not to ground! The way it is on the diagram if you have the overide switch on and then the thermatic switch made it would short circuit to deck. Looks good apart from that!

Regards Dave

[gtrclive]

I will Alter the drawing and update my post when I can.... The windows are on my version, will undate the original, and yes your right the Rad S/W....

[jschwartz]

EFI needs 12 volts at the ECU to run properly. EK's Schwartz built 383 EFI wouldn't run until he added the larger gauge wire from ignition to battery, voltage jumped to 12.7 from in the 11's.
Run the heater or AC for 1/2 hr and try touching the blower motor switch wire.