Megasquirt ON BMW m52 Engine

[maxott1]

hello people,

i've just bought ms3x assembled ECU, and started wiring build up. need some help

my car: e36 m52 1996 (siemens ms41.1)

i goona connect it to stock ecu connector like this




i've done wiring diagram bellow(needs check&completion)



ms3/ms3x wiring diagram here:
http://www.msextra.com/doc/ms3/hardware.html

stock (ms41.1) wiring diagram here:
http://i41.tinypic.com/2hpogv8.jpg (part 1)
http://i41.tinypic.com/14bpxzn.jpg (part 2)
http://i41.tinypic.com/sdioia.jpg (part 3)




thanks

[Pzary3233]

You might think about simplifying your wiring by going OBDI on this car.

You'll also not follow the OEM o2 sensor wiring, as you'll need to wire the o2 sensor as the MS unit needs.

Basically I would ONLY look at the vital functions of the motor and sensors, you need, spark, air, and fuel.

Thus you need

Injectors, coil packs, and the correct sensors

Cam, crank, tb position, iat, ICV, water temp (if MS needs it), and MAF (if MS needs it).

Make sure MS can read the stock sensors and go from there.

That was a severe glossing over, I do think that an OBD I harness would be of huge benefit.