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help on b20 automatic swap (TCM)

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Old 03-23-2008, 11:47 AM
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Join Date: Mar 2008
Location: san jose, ca, u.s.a
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Default help on b20 automatic swap (TCM)

i have a 93 civic hatch and i am going to leave it AUTO but here is the fun part i have a b20b that i am dying to put in there i have all the parts and i really need help on the wiring thing here
i kept my stock ecu which i am told is ok as long as i run a fuel pressure regulator on it and then for the tranny i have a auto gsr tranny straight from japan yes a auto gsr lol but i have a problem i have a tcm...
transmission control module ...
from a 95 integ auto but i have no idea how to wire it up to the stock ecu if i do not use a tcm then when i turn the car on in park it starts to spin the tires can you help me out with anything here


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Old 04-09-2017, 03:15 AM
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Default Re: help on b20 automatic swap (TCM)

from what i know about the GSR auto's is the TCM is built into the ECU so if its going into gear but not the right one you select then its because of the pin outs, there different than the civics, what itd sugest is looking at the pins for the GSR auto shifter and CRV and you can re-pin them and it should work, I myself am swaping a B18B1 into my 92 civic DX both are OBD1 and i have the TCM but have had no help on how to do the wiring, i know some years they changed it and put the TCM into the ECU, mine came out of a 94 integra LS if you know anything please let me know, im in a bad time in life and dealing with chronic pain 24/7 and need to get my car back up and running and if i had the damn funds to do a manual swap i would but life hates me and i have to stick to the stupid auto >_> i hope this helps ^_^

Zim 107
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