Taken the car (4.8is) to a dealer and an indie. One wants more time to swap injectors and the other says it is eccentric shafts and/or intermediate levers and that the parts alone would cost about $8500. Have connected car to INPA and there are no outstanding readings for cylinder 1 although I have not checked injectors yet. Camshaft position for both banks was towards top of range (120.00) and air mass was 23.5 kg/h (max 25). Vanos readings were fairly consistent across both banks. “Adjustment angle” for 1-4 bank was 0.00 and for 1-5 bank was 2.00. Appreciate any suggestions. No sign of chaffed wiring.