MSefi.com read only forum (Jan.15,2018)

it looks like my stim board is fried, im going to have to order another one, i replaced what i hought was bad, and its still not working..

my apologies what is the pp3?, and i did the step by step checks, everything worked like it should, i bridge the backward diode and i would get rpm signal, installed the heatsink, put it in the car and -pop- the 12v fuse went, thats when i found i had the bip373 and needed the mica insert, i ...

so i should attempt to check for the voltages, even if it heats the 9v battery almost instantly? just for clarification.

not sure what all info is needed so here we go,...Jumpered, (xg2-xg1) (tsel-optoout) (top of r26-330ohm resister-igbtin) (igbtout-pin36) (tachselect-optoin)
Everything was assembled, connected to the stim everything but tps and rpm were working, rpm because of backward diode(i believe) connected to ...