JDM Wiring harness to single turbo
 

I've found a great thread about how to convert a usdm harness to single turbo, but I've just opened up my JDM harness trying to follow the tutorial and the first thing I noticed was how different the two were!

I started off by test fitting components into some plugs. I got a few obvious ones down like the OMP and the air pump. I also noticed that a few plugs are the same. So I stopped right there. Wiring is one thing that's above me so I'm not about to experiment with the harness which I don't fully understand.

Is there any sort of diagram of the jdm harness as there is for the usdm harness? If I could know whats what, I could go from there baut at the moment I'm a bit stuck. Thanks guys

bumb.
going through the same process switching to non sequential.

The main difference of the harness is emissions. Instead of eliminating what you don't need, try isolating what you need. The plugs for the essential components will be the same.

IAT
TPS
4 INJECTORS
3 Connectors for WP housing (ecu coolant temp, fan switch, coolant level)
2 ignition pickups
Knock
Coolant level (on block below oil filter)
Coolant disconnect (attaches to engine harness)

The rest is emissions and idle control for acessories. You can keep the O2 but most ditch it.