E9 Csi ECU

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Georgie22

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Hi everyone, I have a 1972 BMW 3.0 CSi VIN 2262612
I have an issue with the ECU it seems, do you now where I can get this repaired by someone competent.
I am based in Switzerland.
 
sfdon said:
Pretty rare for those to go bad. Have you tried borrowing a spare?

ProgRama Remanufactured Electronic Control Modules 2-3 YEAR warranty

Mercedes Benz, BMW and Volvo ECUs, Climate Control Units, Instrument Cluster repairs, Lowering modules for MB, Porsche, Bentley
www.programainc.com



What symptom makes you think the ecu is bad?
Click to expand...
one of the injectors is not working and thus runs on 5 cylinders. Garage cleaned the injectors and said it was the ECU that was defective.
Any idea what else it could be?
 
If it is 1,2,3 or 4 they are likely wrong.

The e9 forum has a djet loaning library.

You pay shipping and we loan the part.

We have Ecu’s to loan out.
 

BMW Bosch 0280001007

Repair of your BMW D-Jetronic
ecu.eu ecu.eu
IMG_1847.png
 
As fare as I know,
There are 3 cylinder are triggered together by the ECU ?

Check for broken wires from the ECU to injectors.

If not, maybe only a cold weld in the ECU.

@sfdon Already post the diagram.


Breiti
 
Last edited:
The garage didn’t need to clean the injectors to say the computer is bad…

Every shop should have a Noid light tester.

 
I think 2 drivers and 4 connectors at ecu.
Very unusual.
Firing 2 banks of 3 but using single wires to 5 and 6.
 
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send me a PM by clicking on the sfdon icon.

I will send out a test ecu.

I’m in Amsterdam, Paris and Malaga next month- no Zurich…. Otherwise I could deliver. :)
 
Check this side

D-Jetronic Teil Anhang B: Pinbelegung der Buchsenleiste nach Herstellern

Anhang B der D-Jetronic Reihe von Dr-DJet listet die Belegung der Buchsenleiste für alle bekannten D-Jetronic Fahrzeuge. Damit könnt Ihr Eure D-Jetronic prüfen.
jetronic.org jetronic.org

Cylinder 1, 3, 5 and 2, 4, 6 have each a commen driver.

So if the electronic will be bad, you have 3 valves not working.

The rest is wiring outside the ECU or
a conductor path , a connector or a bad weld in the ECU.

Good luck

Breiti
 

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sfdon said:
If it is 1,2,3 or 4 they are likely wrong.

The e9 forum has a djet loaning library.

You pay shipping and we loan the part.

We have Ecu’s to loan out.
Click to expand...
SFDon’s lending library of Djet parts is a life-saver for CSI owners, as is, of course, his knowledge. Get to know him, he is an invaluable resource.
 
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