Quote:
Originally Posted by peterux
I've invested in a BMW e46 Bently manual. It cost a a packet but it is huge; running to 1400 pages and a full 50cm thick!!
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Quote:
Originally Posted by Rich
Based on what I have read Patrick is correct. You need to have matching Key, EWS & ECU for the later models.
If you do not have these you should be able to have the ECU coding disabled. It just means you will need to add an after market immobiliser.
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I've now spent many hours reading the manual and addtional material on the web about the DME/EWS system.
I have spent more time tracing out the wiring looms and could end up building a complete car to get this thing to work.
So then I started wondering how clever this ECU really is?
It has a control line for the Fuel pump relay, one for the main DME relay, one for the starter solenoid and finally one that interupts the ignition coil packs (called an uploader relay).
I am wondering if all of these are 'forced on' or simply bypassed (eg starter solenoid direct from the ignition switch) will the ECU still drive the ignition coils, switch the injectors and drive the VANOS, etc.
Or is it smarter than that?
Do we have any BMW design engineers (or maybe a car thief) that can help??