I have a 98 Dual Fuel 4.5L which has a problem that I am having trouble getting sorted out.
If I run on say Gas for 400/500 K when I switch to Petrol it runs really rough. The same if I run on Petrol
Easy fix just disconnect the Battery for say 15 minutes and all is well.
I would like to disconnect the ECU only without having to reset all my Radio Stations , time etc.
Can someone advise me where the Power to the ECU is located.

This is only a temporary fix as the Wiring for the Gas will be reinstalled when I can afford it.(It is a bloody Snakes Nest)