omar.harmoush

Yeah. Stupid mistake but i didn’t realize it would be an issue. Using a macbook running boot camp windows 10 can’t communicate with the ecu even tho it told me that it unlocked the ecu and was connected and was changing settings. After i got it back from Link it started right up and i got an actual windows laptop and i had no issues at all. Dumb issue but it is what it is lol.

My car was M3.3.1 with the Bosch red label 413. Thats exactly what an M50TU E36 has in it. So i completely doubt that the pinout is different. I was able to run it with a megasquirt 3pro pnp which is specificly for M50TU/S50 E34 and E36 manual so i really really dont think the issue is with the pinout. http://www.wedophones.com/Manuals/BMW/1993 BMW 525i - 525it - 535i - M5 Electrical Troubleshooting Manual.pdf On page 148 it shows the pinout for my car. Its the exact same pinout as the Link ecu and the E36 M3.3.1 so i really believe that this issue is either with my ECU or with the software or something.

Actually, do you know if the pinout between automatic and manual cars is the same? My car was auto before i put the S52 and manual transmission in so idk if that could be the reason?

Well the fact that it started with the oem ecu should mean that there is continuity in the circuit right? Everything on the car is obviously working if its able to start with the factory dme? Is there something wrong with my tune file or something? Ill attach it so you could take a look at it. S52 E34 Turbo.pclr

Im checking the voltage at the plug from the harness. I plugged in the factory dme with the stock injectors and it started right up.

Okay, I’ve tested the voltage at the plug and my Link G4+ isn’t providing any power to the crank sensor at all. The stock DME gives it about 5 volts. Idk if my ecu is defective or something?? The pins are for sure in the correct spots.

They each have 3 pins. I will check that tomorrow

Yes i did it while cranking. The sensor gets ground from the harness right? My harness isnt modified or cut in any way. The sensors are for sure M50tu i just replaced them both with brand new OE sensors for an M50tu. I will recheck my engine grounds tomorrow. Is there somewhere i could find the wire colors for each pin?

Yes

Yeah my pins are in the correct place. So what do you think the issue with it not receiving any trigger signal could be? I’ve spent the past week or so trying to get this car started and i can’t figure out what the issue is. I have my triggers set up correctly i believe i’ll post my tune file so that you can take a look at it in case i missed something. It started up perfectly fine when it was on the MS3 Pro PnP with the M50tu base map.

I will take a look at it tomorrow to see what pins my crank sensor is on. I’m 95% sure that mine is the M3.3.1 and that i shouldn’t have to repin anything because one of my friends is running a link in his turbo m52 e34 and he didn’t have to repin anything. His car was also an M50TU car from factory so that’s what makes me think i shouldn’t need to. I will check it tomorrow tho to make sure, if that’s not my issue then idk what else to do.

Are you sure that the E34 M50TU is the M3.1 and not the M3.3.1? I thought that the M3.1 was the non vanos DME and the M3.3.1 is for the M50TU. Also my injectors, tacho, ignition, tps, everything is working except for crank and cam sensors.

Trigger Scope Log 2019-12-21 3;13;54 pm.llg

I will post a trigger scope when i get to the shop. Yes i am using the E36 plug and play. I didn’t know it had a different pin out? The M50 E34 and E36 use the same stock DME don’t they? It had a Bosch red label 413 in it before.

Hello, i have an E34 S52 Turbo that is running on a completely stock OBD1 M50TU harness with all M50TU sensors. Ive put in all of the M/S5x trigger settings in thats on the info section and i still cant get it to start. I replaced the crankshaft and camshaft position sensors with brand new M50B25TU sensors. While cranking it the trigger tab under the runtime value says No under trigger 1 and trigger 2. I'm not really too sure what is wrong im getting no fault codes or trig 1 errors. Any help would be appreciated, thank you.