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Got it, yes!! Murphy's law struck, of course, I had the two identical red/black wires that go to T1 and T2 on the back of the fuse panel, both are the large orange 40amp fuses, I had them back to front. Swapped them around and tada, no more secondary air pump running and engine now starting off...

After more research and tinkering I was looking into the power supply to the relays. I read that the 458 relay (R1) is the ECU and the 100 relay (R2) is the secondary vacuum pump. Pulling the 100 relay made no difference to the pump wanting to stay on with the battery connected and the key...

Hi all, I'm building up an A3 for the wife but it is starting to get the better of me. After countless hours of researching and head scratching I have signed up in hope of a little assistance. To start out I had an 12/07 build A3 with the 1.6 petrol that was damaged when I purchased it. I...