XU9J4 - MI16 - Coil & Amp Wiring

[Omorgan 1 1 Cars]

Hello all. Again it's me with more questions about spark and fuel. I have spent 2 weeks reading and trying to get spark and fuel based upon your guys previous help and the rest of the topics. I have read and annotated multiple different wiring diagrams etc to no avail.

 

After I got the car started last time thanks to @DamirGTI, @welshpug, @SRDT and @petert, it spun a bearing first drive and I tore it down to find some chimp had assembled it and it was never going to run for long. (wrong crank, stem seals not on the guides, loose guides, main-cap bolts hand tight etc) I've rebuilt the engine and now I am at the stage again where I have no spark or fuel. I've changed the TDC sensor and I have a blue top ignition amp. 

 

Last night I stripped the loom and have taken notes of every wire and plug and where it goes into the ECU socket. I cant find a diagram for my ECU that is accurate to my two row ECU (Bosch Motronic 0261 -200 - 125)

 

As I don't have the correct diagrams, I was wondering if someone could please tell me if the Coil and Ignition module (wrongly labelled AFM on my drawing) wiring looks correct? Its been butchered before and I feel like its wrong - hence no spark. I feel like the Purple & Yellow+Green should be swapped. 

 

Anyone also know what 2C is on the last photo diagram? (Highlighted in blue)

 

Thank you all. Really need it up and running asap. Got a big trip in 3 weeks.

 

 

 

 

 

Edited April 12 by Omorgan
Extra detail

[SRDT 198]

Here is a 35 pin ML4.1 Motronic diagram:

 

[Omorgan 1 1 Cars]

Thank you @SRDT,

 

Do you have a key for the photo? I don't know what Item 285 is from the coil. It appears to be a ground, however that disagrees with the markings on the top of my coil so I'm unsure. The rest of the diagram has been spot on so far, really helpful!

Thank you. 

 

[SRDT 198]

[welshpug 1,677]

Pin 4 on the coil going to component 285 is just a connection for a suppressor, the black female spade.

 

Never actually seen one connected there.

 

 

The cut wire is not on the diagrams, so i have no idea what that's for.

Edited April 12 by welshpug

[Omorgan 1 1 Cars]

So it should be just the two in the middle connected then for it to run (as Idon't have a tacho). Still nothing today getting really frustrating. Anyone know how to test the amplifier at all? Looking like I'll need to find a new blue top one because I've tried everything else now. 

[hoodygoodwood 77 3 Cars]

I am doing a similar thing to you by stripping my loom back and removing unwanted wires and making one or two repairs before i fit it to my 309 , it was taken out of a 1989 405 Mi16 at the same time as the engine and box etc and i would say it has been cut where it goes through the bulkhead  . ECU is 0 261 200 125 and AFM is 0 280 202 202 . The picture shows my 4 way coil plug , the blue wire ( no 2 ) was cut to tee in an imobiliser . Green i believe powers the rev counter and i think would be no 112 in the Haynes wiring diagram . The 2 other wires may be 3A and 2C , i will try to check these .

[Omorgan 1 1 Cars]

Thank you mate. Looks tidier then my messy wiring are you able to trace where the yellow and pink go please? 

Edited Thursday at 10:22 PM by Omorgan

[hoodygoodwood 77 3 Cars]

I will check when i go to the garage tomorrow 

[hoodygoodwood 77 3 Cars]

These are my coil and ignition amp plugs , i have not removed or moved any of the contacts just stripped off the black tape and black tubing .

Starting from the top on the coil plug - position 1 to 4 , then ignition amp plug - position A to G .

Position 1 - yellow 32 - to brown injection relay 

Pos 2 - blue 2A - positive supply - joins orange wire in loom bundle - see 2nd pic .

Pos 3 - lilac 3A - wire goes direct to ignition amp point A .

Pos 4 - green - to revcounter ? via some connections/shielding

 

Position A - lilac 3A - direct to coil plug .

Pos B - earth M3 - to shielding on rev counter wire .

Pos C - no wire - blank .

Pos D - orange 2B - to joint with blue wire 2A - see 2nd pic .

Pos E - green 101 - looped to position F .

pos F - green 101A - to ECU .

Pos G - no wire - blank .

[Omorgan 1 1 Cars]

Thank you for taking your time to do that that mate, you have no idea how helpful it is to be able to compare without looking at diagrams over and over. Would you please be able to tell me which position on the brown relay the yellow wire goes to please? Mines not connected at all. Also, does the blue wire 2A (and orange) go to the ignition barrel? I assume thats the switched live supply to the coil. 

 

Again, thank you.

[hoodygoodwood 77 3 Cars]

I am working from the same page of a Peugeot 405 Haynes manual as you are , its been helpful but laying the loom out and tracing every wire is the best way . I have removed everything not directly related to running the engine and its going to be modified to fit the Mi16  and engine bay once its in the 309 , all the connections coming from sensors etc into the ECU i am happy with but its going to take some research to sort out the wires going into the car as the loom was cut ( i would guess ) where it goes through the bulkhead . 

The blue wire 2A does go into the car , according to the Haynes diagram it turns into 2 then 32 where it goes into the ignition switch .

The yellow wire goes into the brown relay ( injection supply ) , the other 3 are thick white wires 20 and 1A plus yellow/green M44 . I will see if i have a pic of the relay .

[hoodygoodwood 77 3 Cars]

The Haynes manual wiring diagram shows different wires on the brown relay compared to what i have on mine , the thick white wires 20 and 1A are the same but i have yellow 32 and yellow/green M44 , Haynes has 1B and 36 . There must be some detail changes over the years because the Haynes diagram has wires for a knock sensor and lambda which is a later thing i thought ( 3 row ECU ? )

[Omorgan 1 1 Cars]

I believe so, mine is the same as yours then, and my engine used to have spark and fuel and run fine before the rebuild. I think my voltage amp must've died, I have another one on the way.  When I next get the chance i'll splice the wires accordingly and see if I have any luck.

[hoodygoodwood 77 3 Cars]

This is the brown relay ( injectors ) plug , i have removed the relay so you can see the orientation of the spade connectors .

Left ( by  my thumb ) is thick white 20 

Top is yellow 32

Right is thick white 1A

Bottom is earth M44

 

What car is your loom from , it seems to have some differences ?

[Omorgan 1 1 Cars]

All of that is the same as my loom, which I believe was from a 405. The only difference is I accidentally bridged 32 and ground last year while troubleshooting and melted them. All I should need to do is run 32 from the coil and the ground to the main loom ground, as well as an ignition live to pos 2 of the coil to have them the same.

[Omorgan 1 1 Cars]