I just installed my AEM wide band gauge tonight. When I dynoed my car a few months ago at Steeda the air/fuel was about 12.0 across the board. When I got on my car tonight the air/fuel reading on the gauge said it was below 11.0, and anything below 11.0 does not have a reading on the gauge. I put the sensor in the passenger side rear O2 because I have an off road h-pipe. Is this positioned in the correct place? Should these readings be so different? Steeda uses the rear tailpipes to test O2 readings. Any help would be great. Thanks.
