Hi guys, I modified my harness for a single turbo. I put it back in today and now there are two connectors that I don't know where they go. I connected the commander to the Ecu and it won't power up either. I think there is no power going to the Ecu and I think it's because of these connectors. Can anyone guide me or help me with this problem please.

Thanks in advance.

 

I think the larger black connector is for the fan control timer box thing that mounts down beside the ECU.

 

Make sure that you have grounded your harness back to the engine block and all other grounds as well. That can cause your PFC not to start up.

 

I checked the grounds they are fine. Crawled into the dash and I still can't find where that black connector goes. Does anyone have a picture of the connector??

 

I've responded to your PM.

If you goto this link:
https://www.rx7club.com/3rd-generati.../#post11440008

under post #5 tells you exactly what we're dealing with here.

First thing first, check Pin 1A, 1B for power,

then make sure your ecu is grounded and pin 4C is a good ground.

If you have power to Pin 1A, 1B and also you have a good ground, your ECU will turn on.

I bet you somewhere you have no continuity in the power wire.

Check and report back.

-AzEKnightz