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Discussion Starter #1
New ecu from Alpina fitted, new fuel pump relay, fuel injection cleaned and tested, fuel pump pressure confirmed 3.0 bar, new fuel filter and new fuel in the tank. Engine crank but the injector is not spraying fuel. Wiring checked. OBD scanned, unfortunately ECU not responding. Any thoughts on what else could be a problem area.

The car does not come with immobiliser according to the historical production data supplied from BMW.

I am waiting for a working used ECU 179 from the US, and hopefully use this to start the car.
 

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Discussion Starter #4
Yes, the new ECU did not work, sent it back and now waiting for replacement. In meantime I am using a standard 535i ECU...
 
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