Kickdown problem / misfire 1995 750iL

Have a 1995 750iL that is throwing a P1383 OBD2 code ignition monitoring malfunction along with misfires on cylinders 7-12 when a kickdown i.e pedal to the floor is initiated. MAF has been replaced along with the rear VCV near the firewall to no avail. No leak on the rubber hose from the MAF to the throttle body either. High rpm driving in S2 does not trigger code, only in a kickdown operation usually from 5th gear to 3rd. After kickdown, rpms on the engine go up but doesn't seem like transmission is kicking down in gear to grab. CEL flashes and transmission is in limphome mode until engine restart. Any ideas?

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[Wayne 962]

That's an odd set of codes. I don't have any specific recommendations, except that I think this might be related to a transmission issue instead of an engine issue. Maybe it could be a mixture of both - I'm just not sure, sorry...

- Wayne