I am losing all ignition feeds to ECM, When it stalls i lose Speedometer, overdrive, fuel, spark, & patience, yes the ecm has been changed twice, camshaft sensor twice & crank sensor once, if you smack the ecm you will hear the fuel pump prime & injectors will prime overdrive switch will work & engine will fire, seems to be worse in the rain & cold Northern Ontario weather, i have cleaned all ground, Removed all bad splices in factory wiring & checked & rechecked all connections, & harness, could i have a short in some circuit causing the ecm to trip into safe mode or do i need to try somthing else????? PLEASE HELP!!!!