Checked the red wires today and the thicker red wire (Molex) is connected to a place where it gets current when the ignition is turned ON.
The ECU thinner red wire was connected to a different location (to connector that goes to fuel injectors). But when I connected the thinner wire to same place as the thicker red the gauge powered up when I turned on the ignition BUT after a while the pump was activated and started spraying. The car was not running.
This thread was made by a friend who originally installed the system and had the same malfuntion.
http://www.aquamist.co.uk/vbulletin/...ead.php?t=2026
Now I?m confused is there a wiring issue or do I have some kind of harness issue as Richard suspected earlier?
edit: What voltage the thin ecu red wire should get in pre-crank position and when the car is running?