Hey guys I know this is probably a really stupid question, but I'm in the process of doing a 3.4 swap and I sold the 3.0 and harness out of my 93 pickup. When I pulled the 3.0 harness off I noticed it had a couple more plugs on it than my 3.4 harness has. I've read on these forums about the speed sensor plug and my new harness has the plug. I think I've figured out the reverse and speed sensor and o2 plugs but don't know where the two blue plugs go. Was wondering if anyone could give me info on what I need. Thanks and again I'm sorry for my stupidity. I have everything I need including a pigtail I had made from a guy that use to work for ors so getting ready to drop the 3.4 in. Thanks again

 

You might wanna include if it's an automatic or stickshift. A lot of 5spd trans use mechanical cable for speedometer. The wires are only for reverse and 4wd in the tcase.

 

Sorry. Yeah mine is a 5speed and the speedometer is electronic. The 3.4 harness came off a 99 tacoma.