M50B30 into a 84 euro 323i? RESOLVED!!!!!!

[mini612]

Hello everyone, my E30 is a euro 1984 323i and I built an M50b30 nv stroker. After a few weeks of researching and trouble shooting, I have decided to ask for any ideas and inputs. At this time, I am not getting any spark but I was initially getting sparks a few weeks ago when I first completed this swap, since then I've installed new Crank Position Senor, and new Cam Sensor (and yes, both are the right ones for nv). I do not have the AFM/MAF hook up because I am actually going to be using a standalone MS2 ECU PNP, i also have kdfi. (will not hooking up the MAF cause the no spark? i've started engines before without the AFM hooked up)

The car cranks but there is no spark.
This is what I know/done/tried so far:
- I have 4 OEM nv ECUs, they've all been tried and still no spark (could all 4 ecu be bad?)
- Relays: DME, Fuel Pump, and Main been tested and function the way they should
- New Fuel Pump, New Crank Position Sensor, New Cam Sensor
- switched Crank and Cam sensor connectors around, and nothing
- c104 in the back of glove compartment are all connected to appropriate pins on X20. I also connected the middle/#2 green wire to a switch 12v. and also tried without it connected, and nothing.
- ALL grounds are solid, the engine is well grounded, with 1 grounding head to block, 1 ground the left side of the block to chassis, and 1 ground the right side of block to chassis. Ignition coil grounded to chassis as well. Fuel injector ground is good. (too many grounding points?)
- I am getting 12v switch at every ignition coil and the coils ground is good .
- the ICV does vibrate quitely in 12v switch.
- I thought my nv harness was bad, so i switched harness, and nothing, still doing the exact same thing, no spark, and again its weird because the engine did fired up a few weeks ago.
- no blown fuse, checked all fuse and they're all good
- I can smell fuel when i take off tb
- i cannot hear my fuel pump prime when ignition is switched to second position with OEM ecu, which is strange because when I use the MS2 or KDFI ecu and plug the battery in, the fuel pump primes without key in ignition, and these aftermarket ECUs is getting constant 12v. When i crank with the aftermarket ecu, it goes offline in tunerstudio.

What else can it be, a bad fuse box, all 4 OEM ECU are bad, bad brand new crank sensor?

I did find a short in the cabin, the fan switch light bulb wires connector were somehow touching, I fixed that, now i have cluster light, and everything in the cabin works.

Any suggestion is greatly appreciated at this time. Thanks in advance!

[Dwilson357]

Do you have a brown wire grounded on the front of the motor? Comes out of ignition bundle for the injectors/plugs I severed that once and had issues with spark. Which makes no sense to me given the plug is the ground for the circuit but worth a quick check! Good luck.

[mini612]

Dwison357, thank you so much for responding. And yes the grounding wire that comes from the injector box is secured.

[mini612]

More info: The OEM ignition switched was bad so I switched it with a later model E30 ignition switch back in 2012 when I did the m30 swap. My m30 swap was a success, no issues. Could this caused the no spark issue?

[mini612]

Thanks to a member on here for his expertise, time, and knowledge! On these early E30's, one of these wires from the car side/ engine harness, appears to be locked and not allowing my spark plugs from sparking. I cut these 2 wires and my car fired right up! These wires are on the old style C101 rectangle connector. Pin #15 (vi/green) and Pin #17 white/blue. thanks everyone. And i hope this helps someone in the future.