Connector J2, pin 56
#1
Connector J2, pin 56
My tuner did a custom EFI live tune and activated Connector J2, pin 56 on my computer for me to run a wire to so that when activated, it will pull timing. My question is, which pin is it? Im assuming since J1 is stamped on the blue side of the computer that J2 is on the red connector, and since the computer has a 41 stamped on one side of J2 and an 80 stamped on the other side of J2 that all I do is count the pins from 41 over until I get to number 56. In the picture below, I have made a green dot on the pin that I think is pin 56 is this correct? In addition to this, he also provided my an orange pin connector that you can see in the low quality picture laying on top of my computer, how does this go into pin 56, do I plug the orange pin connector directly into the back of the computer, or do I take the connector apart and hook it into that somehow?
#4
Teching In
Joined: Nov 2007
Posts: 13
Likes: 0
From: Aiken, SC
If you take a small flat tip screwdriver you can remove the gray protective plastic cap off of the back of the connector revealing the pin numbers that are casted into the actual connector housing right beside the corrosponding wires. Take the screwdriver and you will see locks on either end on the red cap on the connector that you will depress to remove the cap allowing you to easily install and remove any wire from the connector. As for pin 56 being the terminal used to pull timing i am guessing that he has installed a custom operating system which utilizes that terminal. The orange terminal sitting on the PCM will not work in the factory connector which you will see once you have disassembled it. You can take a wire with it's pin from a location that is not being used and place it in position 56 but you should be aware that applying a ground or voltage in the wrong location will almost always result in a damaged PCM.
#5
If you take a small flat tip screwdriver you can remove the gray protective plastic cap off of the back of the connector revealing the pin numbers that are casted into the actual connector housing right beside the corrosponding wires. Take the screwdriver and you will see locks on either end on the red cap on the connector that you will depress to remove the cap allowing you to easily install and remove any wire from the connector. As for pin 56 being the terminal used to pull timing i am guessing that he has installed a custom operating system which utilizes that terminal. The orange terminal sitting on the PCM will not work in the factory connector which you will see once you have disassembled it. You can take a wire with it's pin from a location that is not being used and place it in position 56 but you should be aware that applying a ground or voltage in the wrong location will almost always result in a damaged PCM.
#6
Ah, that makes sense. The external connector must have fallen into the box, as I didn't intend to send it. No big deal either way, I have probably a hundred of those things laying around.
Thread
Thread Starter
Forum
Replies
Last Post
Porscharu914
GMT 800 & Older GM General Discussion
14
01-20-2016 10:45 AM
kalikid06
Tuning, Diagnostics, Electronics, and Wiring
4
09-20-2015 07:46 PM