Advance the distributor manually a little
flooded with gas in the plenum from trying to start too many times?
Brick on your gas pedal and big hose off throttle body.
Let it sit for a day.
Your 123 is the 123/BMW-6-R-V-IE, correct?
are you using a Noid test lamp?
When you activate (push on throttle linkage in engine bay) with key on do you hear lots of tiny clicks (injector pulses)? Push down quickly for more clicks.
Remember injector duration if any is determined by speed and load. No trigger or no load signal results in no injector signal. Trigger is distributor and load is MPS. Did you test for continuity at 8 and 10 and 7 and 15?
You have the trouble shooting guide?
If you have injectors with key on by manipulating throttle but none with cranking you have a trigger or MPS problem.
When you activate (push on throttle linkage in engine bay) with key on do you hear lots of tiny clicks (injector pulses)? Push down quickly for more clicks.
24 and 16?
This is a ‘74?
Is there a single white wire over by your coil that is disconnected?
Main relay powering computer is 162 in this link:
You must have 12 volts on pin 87 for car to run.
Pin 87 sends 12v + to pin 24 and 16 at computer.
http://www.e9coupe.com/tech/autobooks/appendix/autobooks_manual_160.htm
Voltmeter set to dc volts
Test battery first got 12 volts?
Key on now
leave black lead connected to negative post of battery and red probe goes to test pin 30 and pin 87 of main relay
Tell me if you get 12volts at those pins
Plugged in.
You are testing if voltage is present to the relay and if the relay is functioning.
The pins 30, 86, 87 need to show battery voltage +
Pin 85 needs to show ground.
Power goes in at pin 30 and comes out at pin 87 if triggered by pin 86
Battery( key off ): 12.08V
Pin 85- there is ground/continuity
Pin30-11.8v
Pin 86-11.21v
Pin 87- 11.78v
Resistance between ecu pin 1 and 13 please.
Have access to a noid light?
https://www.ebay.com/itm/Tester-Dia...257646&hash=item441f5ab0da:g:DMUAAOSwh6xTskph
If you can wait til I get home I can tell you the specific model number you need.