Engine wiring harness removal

Hey guys,

I'm in the middle of replacing my head on the 98 3RZ and it dawned on me that my wiring harness looks like shit. Plastic is all cracked and the pigtails could use some cleaning. Is anyone aware of a tutorial on how to remove the complete wiring harness from the engine bay?

 

I don't have a complete tutorial but you will start from the front of the motor and work your way towards the back where it is held on by a few plastic clips to the back of the head on the left side. And on the right side the same thing. You work from the front of the truck towards the back removing the clips and plugs under the intake manifold and off the injectors. (this part is a pain in the ass if you have big hands)


Remove the glove box and unplug it from the ECU. The back on the back of the firewall remove the 2 10mm nuts and you can push the connectors from the ECU through the firewall in to the engine bay.

It is honestly very simple. Just takes a little bit of patience to remove all the plastic clips and plugs without breaking anything