Trying to narrow down what i need to do for a 1993 300e 2.8 m104 starts up but only fires sparks from middle ignition essentily running on 2 cylanders it is not ignition coils as ive swapped them and only when a coil is places in the middle will it fire these are all my codes Socket 6- 3,4,6,8,9 Socket 8- 4,8,11,13,21,22,28 Socket 14- 3,9,14, My throttle and harness have already been changed out and ive heard in another thread that a bad crankshaft position sensor would cause the two outer inginition plugs not to fire

Im getting 1500 out of all wires is that low or good?

Im going to change the ecu hopefully that vlears things up