Ej20-G model
I was looking through the sensor voltages and i am totally clueless with it aas far as what should things really be like two sensors have a black circles next to them and what i asume is the 02 sensor which reads as;
02-1 - 0w
this to me says its not getting any power anyone know what sensor it is?
Also should my air temp function be working?

Air temp sensor is only fitted to STI's from the factory.

The Oxygen sensor is not fed power, it generates a voltage of 0-1v approximately for a narrow band (stock) sensor "reading" afr's of 14:1-15.8:1 approximately.

If you car is cold the O2 voltage will be 0.00v for the first minute or 2 (depending on how good your sensor is & how fast it gets up to it's operating temp)

Sensors with black dots are 'switches' i.e powersteering load present, Alternator load, cooling fans, fuel pump,ignition switch, A/con etc.





Read this FAQ:

http://www.paulr33.com/powerfc-faq/powerfc-faq.htm

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wow thanks alot for the pics and stuff man and thanks for letting me know pretty sure i was looking at when it was cold. Cheers