streedyash

iTrader: (4)

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.

JM1FD

iTrader: (1)

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

NCRX791

iTrader: (6)

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.

streedyash

iTrader: (4)

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??

AzEKnightz

iTrader: (24)

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