bassically i have 12v at the injector loom plug constantly when the ignition is on, from what i know the live comes from the relay/ignition etc and the ecu supplys the earth when it wants to spray the inj, so i opened the ecu scart up, it find the wire that goes in pin33 which is the injector 3 earth brown/black, so i cut it 6inchs away from the ecu scart, so i have the wire from the ecu to test and also the wire that goes to inj 3 next to each other as they did join untill i cut it, so i know which way the earth is coming from.

then i put a volt meter in the loom connector for the injector on the side with the live supply, then i ran the other lead on the tester into the car, too the wire i cut on the ecu scart side and i got 12v, then i tryed the wire that goes to the injector and i gone nothing, so the earth is permant from the ecu. now ive cut that wire i no longer a have constant 12v at the injector scart.

any advise on what do with the ecu now?

cheers