FiTech EFI system

If anyone has to replace the O2 sensor, it is Bosch part # 17014. Fitech didn't have a part number, just that it came from a volkswagen GTI 2003, 1.8 litre.

I thought I was having a moisture issue with mine, causing the sensor to read a solid 14.4 intermittently... Found out the expensive way that I hurt the harness wires with a plastic tie wrap ( too tight) .. Once moisture got near the damaged wires, the damage allowed it to malfunction, throwing codes 134 and 105. replaced with this Bosch Part number, Canadian price taxes in, 182 dollars.

The new one has a longer wiring harness, if anyone needs. It allowed me to get the harness connector further up away from road spray.