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Nchaupe

Nchaupe 7/23/2020

2007 BMW 323i Base 6 Cyl 2.50L

Transmissions & Drivetrains

What should I do electrically after changing from automatic to manual for my car to start

Hi, I have converted my car from automatic to manual . I have done all the mechanical part and now I don't know what to do electrically for this car to start.

2 Answers


Jimm

Jimm 8/1/2020

Electrical - check the wiring harness compatibility for the manual transmission. Wiring harness, engine to transmission module - 12517566558
Eliminate dc/dc torque converter electrical box - this is a separate transmission controller. It monitors the amount of torque from the motor and asks the main ECU to cut back power if it sees too much torque.

ECU/DME (computer) - It's usually the same DME but coded differently. You can usually exchange a manual for a manual and auto for auto, but need to align the EWS. So in theory you have two options, ether reprogram the current DME to become manual, or swap in a manual programmed DME and align the EWS (electronic immobilization system).

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Jimm

Jimm 8/1/2020

Electrical - check the wiring harness compatibility for the manual transmission. Wiring harness, engine to transmission module - 12517566558
Eliminate dc/dc torque converter electrical box - this is a separate transmission controller. It monitors the amount of torque from the motor and asks the main ECU to cut back power if it sees too much torque.

ECU/DME (computer) - It's usually the same DME but coded differently. You can usually exchange a manual for a manual and auto for auto, but need to align the EWS. So in theory you have two options, ether reprogram the current DME to become manual, or swap in a manual programmed DME and align the EWS (electronic immobilization system).

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