Old e30 relay
Moderator: martauto
-
xavier
- E30 Zone Regular
- Posts: 743
- Joined: Thu May 29, 2008 11:00 pm
- Location: Western Australia
Does the 7 pin fuel pump relay on the very early E30s(1984) do anything else apart from controlling the fuel pump?
-
Grrrmachine
- E30 Zone Wiki / Team Member
- Posts: 8043
- Joined: Sat Feb 09, 2008 11:00 pm
- Location: Warsaw, Poland
I saw your other thread but didn't want to chime in because I know nothing about 323i's. However, this is a page on the power for the 325e, which also had a primitive engine management system:
As you can see, the 7-pin DME and the fuel pump relay are separate units, but one drives the other.
As you can see, the 7-pin DME and the fuel pump relay are separate units, but one drives the other.
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
-
Brianmoooore
- E30 Zone Team Member
- Posts: 49360
- Joined: Mon Jan 10, 2005 11:00 pm
Wrong diagram. This has the seven pin relay: http://e30zone.net/e30zonewiki/images/1 ... e30_84.pdf
-
Grrrmachine
- E30 Zone Wiki / Team Member
- Posts: 8043
- Joined: Sat Feb 09, 2008 11:00 pm
- Location: Warsaw, Poland
And in the Wiki as well 
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
-
Andyboy
- Alpina Colada
- Posts: 12577
- Joined: Mon Sep 11, 2006 11:00 pm
- Location: Notts
It controls both the fuel pump and provides 12v for the injectors. They were notoriously unreliable back in the day, not just on BMW's but also Vauxhalls with LE Jetronic (Carltons etc).
-
Brianmoooore
- E30 Zone Team Member
- Posts: 49360
- Joined: Mon Jan 10, 2005 11:00 pm
Easily bypassed as a test, though. Link together 30 and both 87s, the same as with the later DME relay, but also link pin 1 as well, or link together 15 and 1.
-
xavier
- E30 Zone Regular
- Posts: 743
- Joined: Thu May 29, 2008 11:00 pm
- Location: Western Australia
thanks guys