24v swap with auto DME

[bimmerboy4444]

eye balling a doner car with a auto trans eny considerations on the wiring side i have to worry about. i should just have to wire it so the car contently thinks it's in park or neutral right?
for ref the car is a 94 325is

[drummerchubbs]

Same question here.

[drumad]

are you converting to manual?

[bimmerboy4444]

are you converting to manual?

yes absolutly

nine auto in my car :hitler:

[1991 e30 bmw 318is]

my last car was swapped from an auto e36.. it has a separate ecu that runs the trans... you will have extra wires that can be cleaned up. but its not a big deal.

[drummerchubbs]

my last car was swapped from an auto e36.. it has a separate ecu that runs the trans... you will have extra wires that can be cleaned up. but its not a big deal.

Will I need to have the trans computer plugged in for the engine to start? or will the engine just crank without touching the trans wiring?

[drummerchubbs]

Restoring this thread :)

[Roysneon]

Just throw out the transmission DME and wire it up like normal.

[drummerchubbs]

I've been searching around and a guy had a no crank concern and this is what he did:

"Problem: crank but no start

Solution: I had "drive-away protection" (pin 81 at the DME connector, pin 7 at the x20) connected to my e30 c101 "service indicator reset" (pin 11). This caused a no spark, no fuel situation. As soon as I cut pin 7 on my c101, it fired right up!

Also, in order to use the service indicator lights, I ran pin 11 on the c101 to pin 19 on the x20. Service lights fully function now!"

[jt223539]

I got my engine from a auto car aswell. This was a main concern for me prior to doing my swap. However it turned out to not be a issue.

Do like stated above. Remove the transmission DME, and all associated wiring, and you shall have a running swap, with no issues.