Almost done with my swap and have a few questions for the wiring harness. I don't know where to attach the large ground wire one the passenger side. There is also a very small wire that attaches to the block and I'm not sure where that goes too. And there is 2 clips on the harness that I believe go to the O2 sensors but the sensors that came with the motor are different. Ive included pictures of all of these if someone could help me out or look at theirs for me it'd be a major help! thanks! btw its an 03 with an 04 motor.

 

Disregard I was wrong on where they went.
Did all 4.5 and up get wide band? I thought it was just the revup but it wouldn't be the first time I was wrong

 

1st pic is the battery positive that goes to alternator and starter

2ns pic. install your evap control solenoid yet? it may need to go to that once the solenoid is mounted

3rd pic is for driver side upper 02

4th pic doesnt look like an oem engine bay connector but it looks like a ground type that just slips on a flat post. Is there are ground tab on the driver side coolant pipe?

 

oh and if the O2 sensor clips are different it is because in 04.5 they added widebands which are 5 wire. 03 and until 04.5 were 4 wire narrowbands in the upper locations. So hopefully your harness/ecu all work out.

 

thank you! I've got new 02 sensors coming with the right plugs and as for the other one my EVAP is all set up so don't really know what it is. and the small little plug cannot find a connector at all haha.

 

there is a rear coolant temp sensor below the evap. maybe?

If your ECU is not setup for the different O2 sensor you may have an issue. They output differently.

 

figured everything out with the sensors. now i have a new question. The wire that hooks up to the positive terminal on the battery has two spots to hook up extra things two. one is the wire that goes to the starter like you said. What is the other one too?? thanks for all the help

 

you should post up what the connectors went to. It will help future members just like we have helped you.

Your battery should have a tap on it with some fuses that does some of the larger power distribution. As far as a harness, only the connector for the starter/amp really connects to it that you would remove with an engine swap.


the red cable is aftermarket for a stereo

 

Tried to edit that post, but I guess I'll have to add the attachment.

 

ok thanks! looked at the wiring diagram and didn't look like anything went to it just wanted to make sure