Conversion for the convertible: M30 it is! DONE!

[gooner1]

C,mon Ziggy, we,re all holding our breathe here

[blitz877]

get that monster runnin man

[johnl320]

Chuffed you got it turning over ziggy. run the pump by bridging the relay for a minute and it should fire up straight away.

Good Luck

john

That's what I was planning to do... but where the smeg is it?!

Its one of the two relays that come with the engine loom. I think its the one with 4 wires going to it, not five. bridge pin 30 and 87

john

[Ziggy]

Have some patience people!
Yeah I found it John... There appears to be a distinct lack of power to it though!

[Brianmoooore]

There appears to be a distinct lack of power to it though!

Power to pin 30 of the fuel pump relay should come direct from the battery. Time for a wiring check, I think!

[johnl320]

Yep I reckon you've got another pos connection not hooked up mate.

john

[Ziggy]

That's what I thought! Just spent half an hour looking at it & I can't see anything wrong. Time to give up for today

Tomorrow I guess I'll pull the wiring back through the bulkhead so I can see what's what... I'm thinking something could have got caught when it went through the first time.

Should it be physically straight from the battery as well as electrically? As in does the wire in the loom go straight there, or via the fusebox (even if not via a fuse)?

Sooooo frustrating! It's as good as finished - it just won't go!

[Brianmoooore]

No fuse - straight to the battery. Only fused on rear battery models.

[ric325i]

you will find out what it is eventually. so if its not fused can you just run a big wire to the pump to test it?

quick fix to see if it works.

[Ziggy]

Cheers Brian

you will find out what it is eventually. so if its not fused can you just run a big wire to the pump to test it?

quick fix to see if it works.

Could do, but that'd only achieve anything worthwhile if it's just the one wire that's broken (& even then I want to know where, rather than having it short on something!). There's definitely no power to the relay, & once I've pulled all the wiring back out into the engine bay it shouldn't be too complicated to work out what's gone wrong. Damn it was a PITA to get it all through in the first place!

Here's hoping it isn't raining this eve. My next chance to do anything is Sunday night...

[jaffro]

you will get there mate you are so near already. we have got to go on a road trip tonight to get the parts to finish mine a ric325i 335i's. it will all be worth it in the end though for us all well it should be anyhow.

[Brianmoooore]

so if its not fused can you just run a big wire to the pump to test it?

The pump is certainly fused - but the fuse is after the relay.

[Ziggy]

My brain hurts!

There is 12v to the fuel pump relay but only when the negative battery terminal is disconnected (& IIRC only when the ecu is connected).

Fuel pump runs when a wire is run to pin 87 of the fuel pump relay. (still doesn't start though, but fuel's definitely getting round)

Something's clearly not right!

I've checked all of the connections to the battery:
+: Starter motor, 2 connections that run together to the fusebox (both red).
-: 2 connections that exit the loom by the coil connections (brown, brown&orange).

The power to the fuel pump relay comes from a mini distribution connector, & from a red wire to there. This wire disappears into the engine loom, in the direction of the fusebox, but comes out at the diagnosis socket (I think). Certainly doesn't go via the C101, & isn't one of the direct (in a physical sense!) connections to the battery. I don't really want to start pulling the loom apart to work out more!

I'm confused! I've pulled all the ECU loom back through the bulkhead, but I'm not sure where to start with testing it!

[johnl320]

Has the mini distribution box from the e32 been given a pos feed?

john

[E30Mark]

Ziggy, PM replied to

[Ziggy]

Has the mini distribution box from the e32 been given a pos feed?

john

I've not added one, so only what comes through the loom (the red wire described above)... Please say it should have one!

[Ziggy]

Ziggy, PM replied to

Leg end

[johnl320]

I removed my m30 connecting block and wired those positives straight to the positive block that comes with the battery in the boot kit.
So in short, yes that block needs a direct battery pos as it had when fitted in an e32/4.

HTH

john

[Ziggy]

Eeeeeeeexcellent. One of the downsides of not having removed it from the E32 myself, methinks! Not got much free time tomorrow, but I will certainly be giving that a go!

What else is powered from that block?

[johnl320]

Eeeeeeeexcellent. One of the downsides of not having removed it from the E32 myself, methinks! Not got much free time tomorrow, but I will certainly be giving that a go!

What else is powered from that block?

Mine had a couple of feeds going off to christ knows where on the e32 I ripped the heart out of but it deffo had a feed from the battery and those wires have now, mine start first turn of the key

john

[Ziggy]

Brilliant

Surprised I'd not seen any mention of this before, but I guess most people at least got their engine with the cable still on the loom, making it pretty obvious...

What's the other relay near the fuel pump one?

[johnl320]

Dme

Yeah, yeah We don't want excuses Ziggy we just need a vid clip of it running with no exhaust.
Yours will be on the road well before mine, now that my boiler ( not the misses ) needs replacing

john

[Ziggy]

Thought it might have been - kinda explains why it didn't start after hotwiring the fuel pump relay!

Will Ziggy's E30 be driving about tomorrow evening?? Place bets now!

[Brianmoooore]

Don't know if it's relevant, 'cause it's too late in the day to read back over the thread, but don't forget that E30s with rear batteries have an inline fuse in the feed that goes to the engine loom.

[ric325i]

Don't know if it's relevant, 'cause it's too late in the day to read back over the thread, but don't forget that E30s with rear batteries have an inline fuse in the feed that goes to the engine loom.

that maybe why my battery in the boot thing didnt last too long?

do what i did and just put it in the engine bay for now.



as for placing your bets...........


go on lad!

[jaffro]

any luck yet with the starting probs

[Ziggy]

HAHAHAHAHAHAHAHAHHAHAHAHAHAHAHAHHAHA!

Bit gutted actually - only one car alarm on my road went off when I drove past...

[jaffro]

brilliant mate bet your well chuffed. what was it in the end then.

[johnl320]

Nice one ziggy, how was it? Does it actually have an exhaust on it?

Quick?

come on let us know what happened

john

[Ziggy]

It's got an exhaust of sorts - couple of bits of flexi-pipe to connect up to my old system. Didn't even attempt to get it to seal properly - it's just to get me to the custom exhaust place to get it done properly... so it's rather loud!

The reason was that blimmin missing wire that you pointed out John!

Didn't have a chance to find out how quick it was - only just got into 3rd on my 2 minute trip! Flat tyres, rain, nearly no exhaust so fumes coming into the cabin through the bulkhead, feet getting tangled up in the wires under the dash... Certainly seems to have some torque though!

No sign of the exhaust catching the steering joint which is nice.

Will get the ECU back into place tomorrow & give it a better go... then I'll get the airbox on & move the washer bottle on Fri, & hopefully get the exhaust sorted then too.

[johnl320]

Nice one Ziggy, If you are sticking the battery in the boot, like mine then I've found a peugeot 405 washer bottle fits nicely where the battery used to be. I'll stick a pic up when I get it mounted properly.

Chuffed for you mate

john

[Ziggy]

I will be... & ta for the tip - I'll see if I can find one at the scrappies on Fri!

[jaffro]

i have loads of clearance with the steering which i found rather strange. so glad you got it going mine next

[ric325i]

oh yes!!! the first fire up is the best!!!!!!!!

good man its been a long wait!

congratulations

[Ziggy]

Actually, thanks everyone! Sir Jaffmeister, Jon, John, Ric, Spadge, Brian, Toby, Andy, Gareth, Mincedbeef, Martin, Karan, Ed... damn I shouldn't have started listing people - bound to forget someone! But thanks all... I would say I'd never have managed without the collective knowledge of the zone, but hell I'd never have started it.