digi wiring (in and running)

[autocad]

The under bonnet section of the loom is really simple. After all the ancillaries have been plugged in and you have reconnected the earth to the block and battery, you are left with two plugs in the rain tray that connect to the cabin side of the loom.

These are:
Yellow and black, Power for the loom
Red and white, earth signal for the fuel pump
Brown. start signal.

(thank you to Iowa-Caddy for that)

The only connection I made is the power black and yellow to the black wire that feeds the card heater.

The carb heater section of the loom has to be stripped back to the black power supply cable (the heater switches thought the connection on the radiator manifold on the front of the head). Check the polarity first!!!!

The fuel pump relay can be installed either to switch using the earth signal form the red white wire (safest), or ignition on from the fuse box. using the red white wire is the safest.

The easiest way to install this is to nick the clip on relay from another fuse box take the power supply for the pump from the right hand live connector on the fuse box. Switched either by the earth from the brain or the ignition on signal from fuse box.

I only have one problem, cold starting. The engine spins fire and stops the is a complete pain to start as it has to be spun over for a few seconds before it fires and runs, I think this is fuel related??? Any advice would be appreciated. I am hoping this is just the mixture and once it has been dynoed it will be ok.

After a second or to its fine and runs perfectly.
have my engine in and running thanks to Iowa,

I only connected the black and yellow

[Iowa Caddy]

Woo-hoo! Good show. :)

"I only have one problem, cold starting. The engine spins fire and stops the is a complete pain to start as it has to be spun over for a few seconds before it fires and runs, I think this is fuel related??? Any advice would be appreciated."

I think you answered your own question when you said:

"These are:
Yellow and black, Power for the loom
Red and white, earth signal for the fuel pump
Brown. start signal."

and

"I only connected the black and yellow" .

Try getting a "start signal" to that brown (w/red stripe??) wire -- it should connect through to the #1 pin of the Digi brain. Not sure what all that start signal does, but I reckon it tells the brain to give an extra shot of fuel at start up (same purpose as the cold-start valve on CIS) and probably changes the ignition advance to help with starting.

Next on to LPG, eh?

[autocad]

I thought maybe it retarded the ignition also? the engine thinks stopping at over advances the ignition to pick up the revs. It has that tight feels when its spinning, i'm sure you know what i mean.

I had to put a MK 2 head on it as there was not enough clearance for the manifold i have, I dont know what it came off neither does anyone else, its taller than the standard AGG?

It really runs well, Woo-hoo was what i thought when i hit the breaks at spead, next is an upgrade of the upgrade,

Cheers for your help again.

________________________________________

The problem problem was down to the mixture and air by pass screw being a mile out. When it was warm it was fine. but on initial start up it couldnt breath,

Got my Toro' tank so yep its gas next, got a holiday in columbia to get out of the way first!