Hello guys, i have an ek with a Canadian d15z1 swap i am about to finishing up. Just have some questions i would appreciate any help thank you.

1. By my understanding The original wide band 02 sensor is a 5 wire with a variable resistor of 2 additional wires at the plug making it 7 wires i read on another form here.
So Is it necessary to add those other 2 variable resistor wires to the ecu for the sensor to operate correctly or will i be fine just wiring up just the 5 wires i have on the sensor as mine is a 5 wire only. If i do need them how do i make a variable resistor for the 2 wires and where would they correspond to on the ecu?

2.i will not be running an egr set up as I’m using a y8 manifold that doesn’t utilize one. Anyone know if i can bypass the egr cel code it’s going to throw by possibly hooking up some wires from the ecu that would go to the egr to something else or something like that?

 

1. The factory 5 wire wide band is what you want. If you can't find a Honda sensor then the NTK is the only aftermarket sensor that is known to work correctly. NTK 24300 is what you want. I think the 7 wire you are reading about is the resistor inside the sensor that is laser trimmed at time of manufacturing as part of the calibration of the sensor.

2. Don't run a P07 ECU if you are not going to run the EGR. What is the point? You won't get lean burn and that is the whole reason the d15z1 is magical. Because it is VTEC you will need a P28 and Hondata S300 to make this work correctly. On the upside you don't need the expensive wideband.

 

I was not asking what sensor I need, I already have that. I was asking if it will work fine without those variable resistor wires
2.i do not care for the fuel economy aspect of it at all my guy. I’m simply just getting it running with everything but egr system. I got the swap for cheap only reason I got it. Just need it to get around

 

Yes you need the 7 wires on the engine harness. That is what reads the calibration resistor.

It won't ever run correctly with the EGR missing. That is a critical function on the z1.