O2 sensor

[Gaz86]

Hi first time posting on here, recently turbo charged my is200 having a few issues with o2 sensor as there is now only one in the downpipe. I am struggling with the ECU wiring so I only have to run one sensor does anyone have any pics of their wiring if they have done this cheers guys.

[steve2006]

Hi Gareth,

I have attached the IS200 Engine ECU pin out which shows the connections for both O2 sensors if this helps.

You can also buy ( or even make) O2 emulators which produce the correct waveform to trick the ECU both are still connected.

[Gaz86]

Cheers bud I'll have a look tomo as I only have 1 bung in the down pipe I was hoping that I can wire the ECU to just run the one sensor I have wired it but I keep getting a o2 sensor bank 1 sensor 2 heater malfunction 

 

[steve2006]

Yep the ECU will flag an open circuit heater fault if it is not fitted, you could try fitting a 12 ohm resistor across the heater pins to trick the ECU.