cranks but no start

[Bmwb]

looked around a few threads but still stuck , i sent me ecu back to keith thinking that i fried it , but turns out the ecu was perfectly fine
keith had told me to test pin ,37 and 27 for 12v power , neither of the those pins on the bosch 55 pin connector have power with the ignition on , my ecu isnt powering up at all in the car only on a test bench but tested good on keiths car and bench ,

would a bad ignition switch cause something like this the previous owner had an alarm system i ripped out ages ago but the car still started perfectly fine ,

but why would i not be getting power at pin 37 and 27 also just installed a new engine harness

[rock141b]

No Start

This happen to me I have a 90 e30 coupe, it was a bad crank position sensor, the wires looked ok but when I removed it I pulled on the end and all the wires were broke/corroded.

[Bmwb]

brand new CPS , lol i got 3 cps that ive tried all were working im not getting power to my megasquirt from the car ,

tested all 3 of the relays pins

-87/30 all have 12v to them < these r the relay pins

-now pin 27 / 37 on the 55 pin connector does not have 12v power im thinking of just rewiring pin 27 and 37 but where do they lead im guessing the main ecu relay? , also need a diagram of the fuse box so i can make sure i didn't steal any fuses that r causing the problem cant find a proper one