Check engine light

[kakatotti]

Hey,
I'm still having problem with P0113 and now I have the code P0171 "system too lean (bank 1).

Can I use a GB instrument GMT-12A" as a voltmeter to test the sensor?
DO you pics to where the sensor might be and how I can go about connecting the voltmeter to the sensor to check if it is bad.

Thanks

 

[kakatotti]

really, nobody knows?

 

[evilrilla2]

Negative