Need location of O2 voltage tester on a 90 GSX

[Cranked PSI]

I have a 90 GSX and I need to locate the O2 voltage tester. I know it's in the passenger kick panel on the 91's but the 90's are different.

The reason for the question is because I want to run an Air/Fuel gauge off of it. Any help would be apreciated.

[greenstreak]

You could just tap off of the ecu at the front O2 sensor pinout.


http://www.vfaq.com/mods/ecu-harness-1G.html

[Cranked PSI]

Thanks for the advice. I thought about that, but I have concerns about that malfunctioning my ecu. I have had problems with the car. Do you think that will interfere with the signal the ecu reads? Is there any downside to tapping it right off the ecu? Thanks in advance.

[greenstreak]

I dont' believe that it will interfere with ECU readings in any way or have any adverse effects.

I have always tapped there with no ill effects. All of the VFAQs for SAFC installs recommend tapping there for the blue wire mod.