Hi all so my saga continues... on now appear to have resolved all my vacuum leaks and my long term fuel trims fluctuate between 3 and -3 on each bank which great however my short term fuel trims go as high as 15 and low as 0 at idle and I’m struggling with this I also have a misfire very light and not putting in codes across all cylinders if I watch live data on the misfire counter? Any ideas? What should my fuel rail pressure be on a 4.2 it’s 280kpa..? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF