Hi I have fitted an EMS V2 ECU to my F20c'd AE86 which I am supercharging. We are having issues, and I have a round of competition coming up very soon so need to get this thing mapped! Pretty panicked so hope someone can help or has some ideas of things to check.

The car has a full engine loom installed. I dont have the dash part of the loom.

The car started ok after some setting changes, and we thought we'd be ok for mapping.

However now the Map and TPS readings are only showing 100%? No variables. Before after loading the F20c AP1 supercharged base map they worked ok, but now suddenly only full readings? Wiring seems ok. Could the Map and TPS sensor problem be linked somehow, or is this pointing to an ECU problem the fact it is both? If it is I'm pretty screwed as I live in Ireland, so sending back and forth isn't really a viable option in the time frame.

I've searched and searched on the web but not finding any definitive issue with both reading wrong? I've seen talk of "daughterboard" issues and other such things.

Please help!

 

Right so I resolved this soon after, after ringing AEM. Thought I'd update in case anyone else fits the engine into another car like myself and uses the AEM with factory harness. Basically the engine harness only comes with the B and C connectors to the ECU. We had a coils power wire already ran separate, but you also need to run a wire from the A31 Sensor ground to an earth on the engine. Again I'm not a mechanic, so not 100% on the exact details, but sensor grounds on connector A are needed. Check your AEM wiring pinout, if you have the same problem.