Thanks Pete
Yes the timer is damaged as it was plugged into the air device connector so im ordering a replacement. Ive tested all the other connectors and checked wiring etc so everything is plugged in where it should be now.
I did order a replacement ECT sensor but it turned out to be the wrong one. The resistance of the new sensor was good so I plugged it in so see if it would start with the sensor reading ambient temperature (around 20 degrees C) but it never.
I can get it to start without the cold start injector by simply priming the fuel system and pressing down on the air flap to squirt fuel in.
I am confident with circuit testing etc so thats not a problem. What concerns me is how the engine just shuts off when I plug the actuator in, no spluttering like its been starved of fuel, is this normal for these systems?
Thanks