Cyl 1 is the front of the passengers side, cyl 8 is the back of the drivers side.

When you put the vanos units back on the cams it is picky on the placement, and you have to go exactly according to procedure to get the timing right. Other than that, you probably need to get the valvetronic posotions learned via GT1 for it to know the valve lift.

Those P020Xcodes are for fuel injector circuits on bank 1, so you need to double check all wiring. The P0113 and P0114 codes show either cam advancement or air intake temp sensor from a google search, but would help to know the BMW fault description. May be time to find someone with a GT1.

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2003 4.6is