On the R18 you should be able to use the A23 ECU pin as a wideband input for the aftermarket analog output wire, but the Electronic Load Detector (ELD) must be disabled.
http://www.hondata.com/help/flashpro/index.html?ecu_connectors.htm
From what I understand, the stock oxygen sensor tracks AFRs ...
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- Fri May 22, 2015 7:40 pm
- Forum: Civic Si 2006-2011 Americas
- Topic: 06~11 R18A CIVCI wideband input to tune
- Replies: 7
- Views: 5727