M52 no fuel no spark, now with vid...

[craigieeb]

After installing the M52 engine in to my 325i,
i'v came to a halt at the final hurdle..

i have no spark and no fuel getting to the plugs,

ignition on,
fuel pump primes,
relay's & EWS clicks,
ICV is buzzing away...


But on cranking there is no fuel or spark,
I have been over my wiring with a fine tooth comb,
undone all the connections I had originally made and redone them to make sure they were all good,
and the're spot on


The top and bottom of it is I think the EWS is at fault,

weird thing is tho...

3 days ago, it started, revved and idled,

I switched it off, had a clean up,
gathered up all the wires, made them nice and neat across the bulkhead ,
went to start it again, and thats when the spark and fuel died??


so me and a mate have been over EVERYTHING again and again and again
and the only thing I can think of,

is get the ECU, KEY and EWS tested somehow


So who is closest who would do me a MASSIVE favour,
and plug my ecu and ews in to their E30 M52 just to test to see if it works

[craigieeb]

Here's a list of the connections I have made


E30... TO... E36

1...... 25
2
3
4...... 12
5...... 23
6...... 22
7...... 21
8...... 24
9...... 20
10...... 7
11...... 19
12...... 8
13...... 13
14..... Should be pin 14 on E36 side, pin 14 is blank, so it's blanked off
15...... 15
16--------
17 BLANK
18...... 18
19 BLANK
20--------



EWS

[E30BeemerLad]

I can do this mate, but I'm still 100 miles away in York

[craigieeb]

AWESOME
(you know that post was directed at you anyway dont you )

Seriously, that would be mint,

How about.... I get them off in the post to you first thing in the morning?
It'll be quicker than walking down

[craigieeb]

Infact, strike that last post....

P.M on route ..............

[DanThe]

Is the live to Pin 2 on that diagram switched? If not it should be

[craigieeb]

Yeah, just been out to double check
and it is on an ign switched live

[luckysnafu]

Does your main EWS module click when you go to start the car? You should be able to hear it and even feel it if you hold the module while turning the key to the run position. No spark/fuel sounds like the EWS stopping you from starting the car. If you don't have the module clicking then that's your problem.

[craigieeb]

Yip the main EWS box clicks
with the key inserted in to the loop,
and ignition on

[luckysnafu]

My only other guess is the main and fuel pump relays. Can you jump the fuel pump relay and get the pump to run? Do you have any extra relays you could test with?

[craigieeb]

Well the ECU and EWS is on route to Lee's to be tested

Fingers crossed it's working and i don't have to shell out another £150..


Big thank you to Lee








but the thanks will be taken back if it doesnt work

[craigieeb]

My only other guess is the main and fuel pump relays. Can you jump the fuel pump relay and get the pump to run? Do you have any extra relays you could test with?

The fuel pump works,
I can hear it prime when the ignition is on,


It's only when it's cranking there is no fuel getting to the plugs...

[magpie]

if you can get it to spark on crank you can run a live from another relay on the engine loom to the fuel pump that stays live when cranking and bypass everything ?

[E30BeemerLad]

Parcel has arrived Craig, I'll plug it all in when I get home and let you know if it works or not

[craigieeb]

Oooooo cheer bud

Fingers and toes crossed

[craigieeb]

if you can get it to spark on crank you can run a live from another relay on the engine loom to the fuel pump that stays live when cranking and bypass everything ?

I don't know anymore mate, I'm sick to the back teeth,
If there is a problem with either the
ECU, key, ring, ring box, EWS box,

I'll have to replace the lot

[E30BeemerLad]

There's nowt wrong with your ECU or the EWS mate

Just connected all your stuff to my car and it fired straight away and idled perfect, revs up without any issues either, so you can rule that lot out.

Seems your problem must be with the wiring on your car

[craigieeb]

and WTF at the same time


Hmm right back to square 1 ......

Stumped

[E30BeemerLad]

PM me your number mate and we'll have a chat

[DanThe]

Have you got a spare crank sensor to try?

[craigieeb]

Have you got a spare crank sensor to try?

I dont mate,
Lee's just mentioned that i should try that aswell,

so i'll pull it out tomorrow and see whats occurring,

i might just get a new one to be on the safe side,

(would that stop both fuel and spark if it's a bit iffy??)

[craigieeb]

Have you got a spare crank sensor to try?

+1. If not, test the one you have.

ok i'll give that a bash mate

and report back

[craigieeb]

Well that narrows it down a bit I suppose/hope,




I hope it is just that, dont think i could take much more of this,

I should of stayed with the 2.7,

there was nothing wrong with it

[DanThe]

Stop being a girl and get on with it

I can send you a crank sensor to try, before you buy

[craigieeb]

Aye?
go on then, that would be canny if you have a spare one mate,

I'll pull mine off tomorrow,

as long as my lengthy golden locks don't get in the way

[craigieeb]

Well the CPS is off
had a quick look at the sheath... nothing wrong there...




decided to pull of the cover to check the wires...






Safe to say it's fuked!!


I'v checked the other side that connects to this mess and the wires are perfect,


So do we think this was like that when i bought the engine?

or is it something to do with the wiring i have done?

[craigieeb]

just to ad...
it's like that all the way down to the sensor

nice and crusty,
it doesn't look that fresh tbh

[E30BeemerLad]

Could have been like that mate and was just on borrowed time.

Sadly, for the 24v lumps, crank and cam sensors are almost a service item. If you do ever buy new then I would recommend you only buy from BMW, the ebay specials are often crap and continue to cause running problems and fault codes to appear. I think I paid about £70 for my brand new cam sensor and that was about 2 years ago, so I bet they are more now.

I'm running on a 2nd hand crank sensor I got from Dan

[craigieeb]

Could have been like that mate and was just on borrowed time.

^^True

When I dissected it, it looked like old burnt wires and not like it had been done recently,
so like you say it could of been on its last legs, and my superior wiring just helped it along a bit

I'll run the one that I'm getting off Dan for a bit and see if that works ok without melting it's self..

Dan send me your paypal or however you want some sort of payment and I'l get some coinage to you fella

[E30BeemerLad]

Should be up & running by Tuesday then

[craigieeb]

Right..

Got the ECU and EWS stuff back from Lee t'utha day, cheers fella,

also received the Crank position sensor of Dan today


Plugged everything back in,
turned the key,
Fuel pump primed,
relays clicked,
EWS clicked,
Spun over freely off the starter
and spun
and spun
and spun


But.....................

















Still the same,
no fuel getting to the plugs
and
still no spark

[craigieeb]

Here's a list of the connections I have made


E30... TO... E36

1...... 25
2
3
4...... 12
5...... 23
6...... 22
7...... 21
8...... 24
9...... 20
10...... 7
11...... 19
12...... 8
13...... 13
14..... Should be pin 14 on E36 side, pin 14 is blank,so it's blanked off
15...... 15
16--------
17 BLANK
18...... 18
19 BLANK
20--------



EWS

Is there anything wrong here^^
whats the deal with pin 14 on the E36 side?
if thats not connected to pin 14 on the E30 side would it still start or not?

[craigieeb]

Bump...