Powering up the ECU
#1
Registered User
Thread Starter
Powering up the ECU
I was hoping to get some simple clarification on what all the ECU needs to turn on properly. How many wires does it take to power up the ECU? I am in the middle of my wiring right now and having some troubles with it and am getting myself a little confused I think. Too many hours thinking about wires probably! For the ECU to turn on properly what power sources need to hooked up?
As far as I can tell, I do have the OBDII port hooked up correctly, this is what I am using to see if the ECU is on. It powers up my Bluetooth scanner just fine, but tells me the ECU is not connected yet. I have the shielded signal wire, violet power wire, and 2 grounds all hooked up on this, so I hope this isn't part of the problem.
Not that this will really help with out getting too involved, here is my connection sheet for anyone willing to take a look and see where I am at with it.
https://docs.google.com/spreadsheets...7uU/edit#gid=0
Thanks in advance for any guidance here. Cant wait to get this thing going finally!
- BATT+ constant on
- +B wire?
- ignition power source?
- efi relay?
As far as I can tell, I do have the OBDII port hooked up correctly, this is what I am using to see if the ECU is on. It powers up my Bluetooth scanner just fine, but tells me the ECU is not connected yet. I have the shielded signal wire, violet power wire, and 2 grounds all hooked up on this, so I hope this isn't part of the problem.
Not that this will really help with out getting too involved, here is my connection sheet for anyone willing to take a look and see where I am at with it.
https://docs.google.com/spreadsheets...7uU/edit#gid=0
Thanks in advance for any guidance here. Cant wait to get this thing going finally!
Last edited by mbomberz1; 01-05-2017 at 03:44 PM.
#3
Registered User
Thread Starter
Thanks a bunch for the reply. I was able to clarify my issue that was confusing me, it was all around the EFI relay. Here is a post in my build thread that explains it further if anyone has any insight that would be great!
Thanks in advance!
https://www.yotatech.com/forums/f160...l#post52348128