Aem Ems

[MustGoFaster]

Originally Posted by blageo23

I think that the ecu controls the tcu. It probably send info back and forth between the 2. I'm not an expert nor is this fact I'm just stating what I think.

The ECU and TCU have one wire to talk to each other with. The TCU tells the ECU to reduce TQ (retards timing) when it's going to shift. That's the extent of the interface as I know it.

[twack]

Originally Posted by MustGoFaster

The ECU and TCU have one wire to talk to each other with. The TCU tells the ECU to reduce TQ (retards timing) when it's going to shift. That's the extent of the interface as I know it.

Is that all the wire does, could you just cut it, or is there more to it. I have an auto with a mt eprom ecu w/link. Im not goiing to, just interested

[MustGoFaster]

Originally Posted by twack

Is that all the wire does, could you just cut it, or is there more to it. I have an auto with a mt eprom ecu w/link. Im not goiing to, just interested

Yup. There were a number of people that said after you got a shift kit you could just cut the wire "cause the tranny could take it". I don't know if that's still a recommended mod or not.