[DYaw]

I am converting my 2006 To a Bifuel Gas/CNG. Part of the conversion is tapping into the O2 sensor before the cat and needs to be attached to a low volt (1 volt or less) sensor or one needs to be installed. My question is what is the voltage of the Bank 1 or Bank 2 A/F senor that is before the cat? I cant find it any where. When I put it on the computer the HO2S on bank 1 and 2 are with in specs but are down stream of the cat. The computer didnt give me a voltage of the A/F sensor. Any ideas

 

[zroger73]

I don't have a direct answer to your question, but keep in mind the pre-cat O2 sensors on the Ridgeline (and virtually all vehicles these days) outputs a variable signal proportional to the air to fuel ratio unlike older O2 sensors that simply output a lean or rich signal, which the computer used to calculate air to fuel ratio.