A forum for discussing applications and implementations of the MegaShift transmission controller code for the GPIO from B&G. This can control up to 8-speeds and 6 shift solenoids (plus a 16x9 table for controlling a PWM line pressure valve). It has manual and fully automatic modes (16x9 load x speed table), with under and over rev-limit protection, and full data logging of all inputs and outputs (among many other abilities). A TransStim to test your completed board is also available.
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Posts: 4
Joined: Sat Jun 24, 2017 7:01 am


Post by killving » Sun Jul 16, 2017 1:43 pm

help plz

Hi I'm trying to get my 4r70w up and running, and run into some issues. sens I'm not running megasquirt is this possible
So her good is it possible to connect tps strait to gpio???
and is it possible to run without rpm and map??

sens I'm not running megasquirt is this possible

Posts: 47
Joined: Fri Aug 15, 2014 7:58 pm

Re: tps

Post by Rukavina » Wed Jul 19, 2017 10:22 pm

Yes it will work "standalone". I don't remember the details but it does use iss, oss and some engine reference to determine load. It is 0 - 5v ref. Map, tps or maf. An old fashioned firewall mounted map would be easiest if it's a older carburetor engine. 5v in from gpio to map, signal out from map and a ground

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