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Message |
Topic: K1100LT fuel pump wont start (again) |
Offf
Replies: 11
Views: 14962
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Forum: Tech Posted: Fri May 31, 2013 6:14 am Subject: K1100LT fuel pump wont start (again) |
My Motronic is very similar to this one (socket on side)
http://www.bmwallparts.com/ECU-Bosch-Motronic-0261200402-e30-325i-525i-P2658831.aspx
cannt take picutre of actual unit, right now. Dint saw ... |
Topic: K1100LT fuel pump wont start (again) |
Offf
Replies: 11
Views: 14962
|
Forum: Tech Posted: Fri May 31, 2013 2:44 am Subject: K1100LT fuel pump wont start (again) |
I don't have my K here to check but is the earth wire from the Motronic to the frame in good nick and screwed to the frame?
Is there any separare earth wire? I dont see any of those. Only one very ... |
Topic: K1100LT fuel pump wont start (again) |
Offf
Replies: 11
Views: 14962
|
Forum: Tech Posted: Fri May 31, 2013 2:34 am Subject: K1100LT fuel pump wont start (again) |
Cite from Motornic diagram:
"The relay ground is provided and controlled by the motronic."
So, the pump is OK, wiring is ok, relay is OK.
Pump is driven by providing ground to relay.
... |
Topic: K1100LT fuel pump wont start (again) |
Offf
Replies: 11
Views: 14962
|
Forum: Tech Posted: Thu May 30, 2013 11:31 am Subject: K1100LT fuel pump wont start (again) |
Well... I'm getting somewhere
There is no ground on relays connector 85. It should be. When I wire ground directly to 85 relay acts and starts pump.
But it will not turn it off.
How long the ... |
Topic: K1100LT fuel pump wont start (again) |
Offf
Replies: 11
Views: 14962
|
Forum: Tech Posted: Thu May 30, 2013 10:10 am Subject: K1100LT fuel pump wont start (again) |
1. yes fuel gague reacts
2. no, temp gauge is not moving, i think it's because engine is cold
A. |
Topic: K1100LT fuel pump wont start (again) |
Offf
Replies: 11
Views: 14962
|
Forum: Tech Posted: Thu May 30, 2013 6:39 am Subject: K1100LT fuel pump wont start (again) |
I have 92 K1100LT. Recently fuel pump won't turn on when I switch ignition. (Yes, I have read another topics about this and cannot find my case).
Thus far:
Fuel pump itself working (tested wit ... |
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