I'm wrapping up my engine install, and I'm down to the nitty gritty. I have 2 connectors I cannot find where they go.

If you're looking at your PCM, it has 3 connections. On each one, about 6" down from the PCM are little pig tail type connectors. The right one has a tan, and I found where it goes. The middle has the same type connector, but it's black.... and I can't see where it connects to. The left one looks like the OBDII port that's in the cab.... and I can't see where that connects to anything, if it does at all (maybe another connection for a scan tool?)

If someone could look at their truck and see where those 2 connections connect to (like what harness it connects to, or what other sensors are on the same harness....) that would help me a ton. I'm about to start throwing tools or pull my hair out! I'm not being lazy, I've traced every harness down and everything is accouted for. I'm ready to reinstall the intake manifold, but I want to get this solved before I do.

Thanks in advance

 

It looks like they hook up to each other.

 

Nope, different style connectors.

 

 

Wow, yours are different than mine

If only mine were the same. Look at your right PCM connector, it's a tan one. My middle one is exactly like that but it's black.

 

Tan is on the left -- AC
Green is on the right -- DE

 

AH! *******! You helped me figure out what is going on!!!! Thanks!!!!! I was going crazy!


I used the harness that came with the '06 engine (like yours) and my '04 has a different connector. I just need to swap back to my original harness. Whew!

 

Glad you got it worked out.