Audi s2 3b won't start PLEASE HELP

[Stealthacq]

It does have a new fuel pump relay
Thanks
What's your name sorry I don't know!!

[twoqu]

Mr Twoqu!
Seriously though double check that relay is correct. I think it should have an 87a terminal that supplies the injector fuse.
Or you could seperate the cover and check to see if there is an issue with the contacts.
I just looked at a fpr thread. I'll find it again.

[twoqu]

http://www.s2forum.com/forum/showpost.php?p=523410&postcount=24

[Stealthacq]

Pin, 19 earth to
Pin, 27 which was 12v on ignition on but on crank goes down to 3v

[Stealthacq]

Yes 87 is fuel pump and 87a is the 12v supply am sure

[Stealthacq]

The relay is new and genuine it should t be a problem also when I put a link between it put the fuel pump on and the smaller contact put other items on
Thanks

[Mikes2]

http://s2-audi.co.uk/workshop/schematics/motronic_3b/page5.png

Fuse 28 - look for 12v supply point D11

[twoqu]

Was pin 27 one of the wires that the immo was attached to?

[Mikes2]

This wiring diagram

http://s2-audi.co.uk/workshop/schematics/motronic_3b/page6.png

covers pin 27 - switched 12v via fuse 32

Goes to your ignition amp

[Stealthacq]

Pinout 18 from s27 fuse does not fluctuate but
Pinout 37 from s28 fuse has 12v on ignition and cuts Down to 3v on starting
No continuity from 87a to pinout 37
Here is the problem!!
Al trace the cable
This would explain why the ecu cuts out when this short happens

[Stealthacq]

Am not sure if the immobiliser was attached to it I need to check

[Stealthacq]

Right found a loose lead that has been cut from the ecu side, it definitely Looks like it went to something as it's got 2 blue wires into 1 and its been but. But I can not find the other end that dies to them fuel pump 87a
Defo some **** up

[Mikes2]

The only solid blue wire at the ecu side is pin 47 - crankshaft position sensor G28 (pin 2).

[newsh]

Pull fuses and check for signs of bad connection, maybe the fuse holder is loose?

[Stealthacq]

This blue wire from the ecu pin 37 is not an original wire it's been added in. But I can not find the other end that should go to fuse s28 or 87a of the fuel pump relay
Can anyone confirm that the 87a go to the s28 fuse then to ecu pin 37?