jindakwa Posted December 12, 2022 Report Share Posted December 12, 2022 Am using a link g4+ plug in ecu for ST 185 (gen 2 3sgte) to run st246 (gen 5 3sgte) which i just swapped in recently. main difference btwn the two is that ST 185 was a distributor type engine while ST246 is a cop. Car runs but has trigger error and am hoping i can get someone here running cop conversion on his gen 2 3sgte to confirm my wiring if correct or experts here. here is how i have wired the crank and cam sensors from the gen 5 engine into the ecu. 1. I connected the Crank positive wire to pin 13 of link ecu ( Trig 1 NE) as per the manual that came with the ecu. However the stock wiring describes this pin as rpm input from the distributor. So not sure why the manual call it trig 1. More reason am worried abt the wiring. 2. I have connected the cam +ve wire to pin 25 of link (trig 2 G1). 3. Connected the negative wires of both crank an cam to pin 39, ground signal (G-) . Can someone confirm if this is correct especially on the crank side where am not quite sure. am not sure if connecting the wire to NE is correct r i should move it G2 (pin 12 of link) which also comes from the distributor. Toyota manual describe the pins as follows; " CRANKSHAFT POSITION IS DETECTED BY THE PICK–UP COIL INSTALLED INSIDE THE DISTRIBUTOR. CRANKSHAFT POSITION IS INPUT AS A CONTROL SIGNAL TO TERMINALS G1 AND G2 OF THE ECU, AND RPM IS INPUT TO TERMINAL NE." PS: There is no mention of G2 (which is pin 12) in the link ecu manual even though the pin connects to the distributor. In fact the link manual says nc - not connected. Not sure if its is an oversight or in some models had it not connected. thanks Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.