dwnthehatch

iTrader: (1)

I just ordered my B16A w/LSD this afternoon. I have searched all key word combinations I could think of but found no results. I need to know what to do about the 5 wire o2 sensor wiring. What do I need to do to convert it to the 4 wire o2 sensor for the sir2 motor. Any help or wiring diagrams would be appreciated.

VTECVillain

There's more than one way to rewire the O2 sensor. The wiring can be done under the hood or you can wire directly from the O2 to the ECU. Here's the pinouts:

O2 Sensor Input - WHT to D14 (needs to be a shielded wire)
Heater Control - BLK to A6
Sensor Ground - GRN to D22
Sensor Voltage - BLK to A25 or B1

nsxmatt

That's the way I did it. It took me 20 minutes to just run 4 new wires and tap into the ecu. It's easy and clean looking and you can always go back to the vx motor and harness since your not chopping it up.

todds94teg

did you guys hook up the blk to b1 or a25. because in the helms it says that a25 goes to the pgi main relay and that b1 goes to a25. and how do you know witch blk wire to run there. plus i'm assume that the 4 wires from o2 go to ecu side of the cut wire not away from ecu. thanks


[Modified by todds94teg, 10:13 PM 3/21/2003]

VTECVillain

You can use either pinout since both are a 12V+ source.