My M30 conversion

[leeparkes]

Is it like this

http://www.e30zone.net/modules.php?name ... c&t=168300

[Rav335uk]

I bet it is

[Bristol_Jer]

You bet right Rav! My engine is from a 1989 535 too. A bit more work!

Another quick question, the coil wires for the low tension side (small wires), are these on a seperate loom? I can't find any wires on my engine loom for them

[Rav335uk]

You bet right Rav! My engine is from a 1989 535 too. A bit more work!

Another quick question, the coil wires for the low tension side (small wires), are these on a seperate loom? I can't find any wires on my engine loom for them

My engine was from a 1990, but the C101 was plug and play
Coil wires should be there.
What coil do you have, large or small metal cased one?

[Bristol_Jer]

It's just an ordinary coil very similar to this one:




There are a bunch of wires with ring connectors on the end of the loom, but I thought these were earth wires? I'll get a pic of them in a sec

[sheebie]

My engine was from a 1990, but the C101 was plug and play
Coil wires should be there.

+1

[leeparkes]

Does this pic help?



Edit: my engine was late 89 btw.

[Bristol_Jer]

Yes it does, thanks Lee. The wires that I thought were all earths, are actually half earths, and the other half must be the coil wires.

[Rav335uk]

My coil looks nothing like yours, it's half the size and a squarish' in look.

[sheebie]

My coil looks nothing like yours, it's half the size and a squarish' in look.

So does mine, looks similar to a 325 coil, I have not had any trouble with mine so far

[Bristol_Jer]

The coil I'm using is my 320 one, I just assumed that would be ok? It's just a bog-standard coil as far as I'm aware.

Lee, took a closer look at the coil wires I mentioned I couldn't find, it's obvious which ones are which now as there is 1 small ring connector and 1 bigger one in the loom, to correspond with the pins on the coil.

Started fitting my cooling fan tonight, and realised it's too big

[ImysE30]

What size have you got?

[Bristol_Jer]

Its 16", can't get it it fit unless I tip it a bit. I'll probably just get a 14" one if I can't cram the one I have in somehow

[ImysE30]

I've just ordered a 14" one, was going to order a 16" one first, phew!

I think most are running a 14".

[charlE30]

The coil I'm using is my 320 one, I just assumed that would be ok? It's just a bog-standard coil as far as I'm aware.

That coil will be fine mate, it's the same as used on certain age E34 535's anyway.. god knows where this lot are finding square coils

Part Cross-reference
RealOEM.com Home

Part 12131286087 (Ignition coil) was found on the following vehicles:

E23: Details on E23
E23 732i Saloon, Europe
E23 735i Saloon, Europe
E23 745i Saloon, Europe


E24: Details on E24
E24 635CSi Coupé, Europe
E24 M635CSi Coupé, Europe


E28: Details on E28
E28 525e Saloon, Europe
E28 535i Saloon, Europe
E28 M5 Saloon, Europe
E28 M535i Saloon, Europe
E28 520i Saloon, Europe


E30: Details on E30
E30 320i 2 doors, Europe
E30 320i Convertible, Europe
E30 320i 4 doors, Europe
E30 316i 2 doors, Europe
E30 316i 4 doors, Europe
E30 316i Touring, Europe
E30 318i Touring, Europe
E30 318i 2 doors, Europe
E30 318i Convertible, Europe
E30 318i 4 doors, Europe
E30 320i Touring, Europe
E30 320is 4 doors, Europe
E30 320is 2 doors, Europe
E30 325e 2 doors, Europe
E30 325e 4 doors, Europe
E30 325i Convertible, Europe
E30 325i 2 doors, Europe
E30 325i Touring, Europe
E30 325i 4 doors, Europe
E30 325ix Touring, Europe
E30 325ix 4 doors, Europe
E30 325ix 2 doors, Europe
E30 M3 2 doors, Europe
E30 M3 Convertible, Europe


E32: Details on E32
E32 730i Saloon, Europe
E32 730iL Saloon, Europe
E32 735i Saloon, Europe
E32 735iL Saloon, Europe
E32 750iL Saloon, Europe


E34: Details on E34
E34 518i Saloon, Europe
E34 518i Touring, Europe
E34 520i Saloon, Europe
E34 525i Saloon, Europe
E34 530i Saloon, Europe
E34 535i Saloon, Europe


E36: Details on E36
E36 316i Saloon, Europe
E36 318i Saloon, Europe

My engine was of an 88 vintage and the connector was plug and play..

Charlie

[Bristol_Jer]

Thank you Charlie Another thing I can tick off of the to-do-list!

[Bristol_Jer]

Got loads of bits the past few days to be fitted, have new clutch master and slave cylinders, 14" cooling fan, braided clutch hose, and a few other bits.

Still waiting on my new uprated engine mounts though. Have an e28 bottom hose coming, and that should be the cooling side of things sorted.

Not tackled the c101 plug yet though!

Haven't took any photo's recently as it still looks the same as before

[Bristol_Jer]

Made up a quick list of things I wasn't sure of tonight, if anyone could help out/ offer a solution it would be much appreciated

The 2 relays next to the ECU, are these needed? As my loom didn't have them fitted. Also the red wires in the ring connector next to the relays, is this just a permananent 12v? Or switched?

Whereabouts is the sensor on the block that needs be changed according to the M30 conversion guide?

Which fuel pipe is the flow and which is the return the come out under the inlet manifold? The way I have the car positioned won't let me get a proper view to follow where the pipes end up.

Cheers

[leeparkes]

The two relays, is one white and one orange? thick red wire is permanant live.

Sensor is on top of the thermostat housing, there's a blue one next to it but its the brown one that needs swapping for an M20 one (and youve just reminded me i need to swap this too )

Can never remember which way round they go, ill have a look tomorrow

[Bristol_Jer]

Thank you Lee

Typical, I sold my 320 head with the sensor still on it!

Have you or anyone else got a photo or any details of the 2 relays by the ECU? They weren't fitted to my loom for some reason.

Haven't done much on the car the past couple of weeks, with the nice weather I've been doing the garden, and also having to fix my girlfriends car that broke down last weekend

I've got the cooling hoses sorted, my engine mounts should be here start of this week (coming from USA). Hopefully this week I'll have the clutch all plumbed in and the gear linkage sorted.

Got lots to fix on my work van over the Easter weekend so that will mean less time to work on the car

[tomson]

My coil looks nothing like yours, it's half the size and a squarish' in look.

Thats an E34 M5 coil, not an M30 one.

[Bristol_Jer]

Had a look at the c101 plugs tonight.

Fusebox side:

1) Blue - from alternator small terminal to ignition light.
2) Blue/Black - oil level sensor
3) -
4) Brown/?Purple - water temp to cluster
5) Black/Brown - oil pressure to cluster
6) Green/Yellow - fused ignition, feed to lambda sensor heater and Rx pin of engine ECU only
7) Green - ignition 12V+ from ignition switch
8 ) Yellow/White - fuel rate from ECU to cluster
9) Black - engine speed (revs) from ECU to cluster
10) Purple/Green - oil level sensor
11) White/Blue - service light reset from diag.socket to cluster
12) -
13) Purple/Red - fuel pump, from ECU to pump relay
14) Blue/Yellow - speed signal from cluster to ECU
15) Black/Green - from unloader relays to starter motor
16) -
17) -
18 ) Black/Yellow - starter, from start position of ignition switch to starter
19) -
20) Red/Yellow - ABS feed. This is 12V+ to the ABS unit from the main ECU relay

M30 engine side:

1) Blue/White
2) Blue/Yellow
3) Red/White
4) -
5) Black/Grey
6) Black/Blue
7) Black/Purple
8 ) Grey
9) Green/Blue
10) Brown/Black
11) Brown/Yellow
12) Brown/Purple
13) Green/Purple
14) Black/White
15) Black/Green
16) White/Yellow
17) White/Purple
18 ) Black/Yellow
19) White/Green
20) Black
21) Green
22) Green/White
23) Brown/Green
24) White/Black
25) Blue

I've got a few wiring diagrams to look at to try and figure out what goes where, or if anyone has any ideas then please let me know!

[tomson]

Jer, the tidiest way for u to sort this out is to cut the plug off your M20 engine loom and get busy with the soldering iron. Will look proper then. Later 1991 E34's (3.8 M5's & V8's) have the opposite Plug on the C101 engine loom so u are unlucky in that respect but it's an easy fix.

[leeparkes]

The list above, do you know what each colour wire does?

The two relays, i know the orange one relates to the fuel pump, cant remember what the white one does.

If i was in your shoe's i would opt for a second hand loom and swap them over. iirc you can use an M20 loom on an M30 just need to lengthen a couple of wires for the TPS.

@ Tom, i put that M3 scorpion system back on the E30 today and it crossed my mind the night i picked it up
trying to split it in the pissin down rain then ended up feeeding it through the ski hatch across the front seat and into the footwell.
what a relief when id shut the boot

[leeparkes]

Fuel pipes

Can never remember which way round they go, ill have a look tomorrow

Only a week late

Does this pic help?

[sheebie]

No sure if this is correct for your car but may help:

http://pinoutsguide.com/CarElectronics/ ... nout.shtml

I will be interested to see how you get the rev counter working. As mine still does not work!

[Bristol_Jer]

Jer, the tidiest way for u to sort this out is to cut the plug off your M20 engine loom and get busy with the soldering iron. Will look proper then. Later 1991 E34's (3.8 M5's & V8's) have the opposite Plug on the C101 engine loom so u are unlucky in that respect but it's an easy fix.

That's the plan Tom, I have cut the M20 plug off already (so I can't use my M20 loom ), just finding out what the wires are for on the M30 side of the loom. I have found out the M20 side, will edit my list in a bit

[Bristol_Jer]

Fuel pipes

Can never remember which way round they go, ill have a look tomorrow

Only a week late

Does this pic help?

That should be perfect thanks Lee

[Bristol_Jer]

No sure if this is correct for your car but may help:

http://pinoutsguide.com/CarElectronics/ ... nout.shtml

I will be interested to see how you get the rev counter working. As mine still does not work!

Thanks, but I think that is for the diagnostic socket rather than the c101 connector

[Bristol_Jer]

I've edited the post above, found in one of BrianMooore's posts, with the e30 side of things.

According to the same post, you only need to connect 3 wires on the e30 side to start the engine:
7, (ignition), 13, (fuel pump), and 18, (starter)

Found this table after a lot of searching, it is for an m50 e34, would this be the same as an m30? The colours match up with the numbers on my loom:

E34 M50 Tu E30

1/ blue/white (oil level, dynamic) 2/ green/yellow
2/ blue/yellow(oil level static) 10/ blue
3/ red/white (ABS supply) 20/ red/yellow
4/ black/blue (aircon)
5/ black/grey (aircon)
6/ purple/grey (aircon)
7/ black/purple (drive away sigle for E34 OBC)
8/ grey (engine fault) 12/ grey
9/ NC
10/ NC
11/ brown/yellow (water temp)
12/ brown/purple (water temp) 4/ brown/purple
13/ green/purple (fuel pump) 13/ green/purple
14/ black/white (speed to inst. cluster) 14/ black/white
15/ black/green (unloader relay) 15/ black/green
16/ white/yellow (Rx data)
17/ white/purple (Tx data)
18/ black/yellow (starter) 18/ black/yellow
19/ white/green (SI. reset) 11/ white/green
20/ black (engine speed to cluster) 9/ black
21/ Green (ignition) 7/ green
22/ green/white 6/ green/white
23/ brown/grey (oil pressure) 5/ brown/green
24/ white/black ( fuel rate to cluster) 8/ white black
25/ blue (ignition light) 1/ blue.
.
from this on an e30 pin 1 is ign light and pin 9 is tacho

[Bristol_Jer]

Haven't even opened the bonnet for over a week until today

My engine mounts are due to be delivered Weds, mix up with customs charges, so can get everything else (prop, exhaust etc) bolted up when they are fitted. I started sorting the c101 plug wiring today and a few other bits and pieces.

Found a couple of vacuum hoses that have been cut off, just wondering where they connect to, or whether they just need blocking off:



(The one in the centre, next to the electrical plug)



(The small one next to the servo hose)

Also the 2 relays I mentioned earlier in the thread, the ones by the ECU, has anyone got a pic of them, or even better some that they want to sell please?

[Bristol_Jer]

Also, forgot to add, on my ECU there was a chassis number so put this into bmwfans, and it came up with September 1990. Not conclusive (ECU could have been swapped when it was in the donor car), but would make sense why my engine came with the 25 pin c101 plug as it is a late m30.

[gareth]

the vac hose on the servo vacuum pipe can be blocked off. The other has probably popped of it's stub on the bottom of the inlet manifold (iirc)

[leeparkes]

I dont even recognise the pipe under the manifold where does the other end go?

[Rav335uk]

I dont even recognise the pipe under the manifold where does the other end go?

I don't have one of those either on mine, just checked