msd 8956 wont work??
 

im tired of seaching with no luck maybe you guys can help wired up all my nitrous stuff yesterday and went out to have a lil fun but the car would not spray so i discounted my window switch and it works great but i would like to have the safety of the window switch wired the white to the tach red wire to 12 volt power black to ground and yellow to the ground side of the noid i was reading a long time ago about cutting one of the wires that loop back into the box but i can not find the thread now thanks for the help trevor

cut both the loops and put it in 4 cylinder mode thats how it works on ls1 cars

thanks for the help i will try that out

Did it work? I'm having issues with an 8956 not working.