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-   -   Used ECM and new EWS? (

neomaximus10 02-26-2013 06:28 AM

Used ECM and new EWS?
I put a new motor in my 740il, and a good used junkyard ecm, car cranks finally with used ecm, but i have no spark, i was wondering if i can just put a brand new EWS module in the car, and align it with the ECM, and not have to replace the key or anything else. I am 100% sure that the EWS module is not coded to the ECM as it is a used junkyard ECM. i do have codes in the ecm for ews antitheft.

All i need to know is if i can put a new ews4 module in the car, and code and align it to the good used ecm i currently have in the car, any help would be awesome!

thanks so much!

BMWFatherFigure 02-27-2013 02:20 AM

Dealer reprogram for your car, sorry bro!!

neomaximus10 02-27-2013 09:00 AM

I can programit myself, i have the autologic scan tool, i just wanted to know if a new ews will fix it

QSilver7 02-27-2013 01:52 PM

No...because EWS uses multiple components...and all have the same ISN (individual serial number) burnt into them. The DME/ECU, EWS control module, transmitter/receiver (on early EWS II models), and the key. They all have to have the same ISN...if not, the starter, ignition, and fuel will be affected.

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