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I don't know what the target AFR is although it would be pretty easy to find out with a wideband sensor, but I'd be a little surprised if it made the kind of difference being discussed. My concern is that using a resistor with a fixed value may cause trouble. The ECU may read the value as too rich and lean out the mixture (there is a limit to how far it will go) or vise versa. A flat spot is more likely to be mapping related rather than the o2 sensor. Remember there are a whole load more factors than just the fueling going on, timing, cam profile, scavenging etc. Closed loop btw is not static the mixture is constantly swinging from slightly rich to slightly lean. There is no fixed value.Can someone confirm that unplugging the sensor actually produces an error? I remember asking Norton the question when I fitted my megaphones and was told although o2 sensors are not used on the factory megaphones they were not turned off in the ECU even when loaded with the megaphone map. My bike has the megaphone map and my o2 sensors work. If there's no fault light and the ECU doesn't throw a wobbly and load a get you home map you may just need to pull the o2 sensor plugs and the ECU will just use its own maps for fueling which is I think what some want.
I don't know what the target AFR is although it would be pretty easy to find out with a wideband sensor, but I'd be a little surprised if it made the kind of difference being discussed. My concern is that using a resistor with a fixed value may cause trouble. The ECU may read the value as too rich and lean out the mixture (there is a limit to how far it will go) or vise versa. A flat spot is more likely to be mapping related rather than the o2 sensor. Remember there are a whole load more factors than just the fueling going on, timing, cam profile, scavenging etc. Closed loop btw is not static the mixture is constantly swinging from slightly rich to slightly lean. There is no fixed value.
Can someone confirm that unplugging the sensor actually produces an error? I remember asking Norton the question when I fitted my megaphones and was told although o2 sensors are not used on the factory megaphones they were not turned off in the ECU even when loaded with the megaphone map. My bike has the megaphone map and my o2 sensors work. If there's no fault light and the ECU doesn't throw a wobbly and load a get you home map you may just need to pull the o2 sensor plugs and the ECU will just use its own maps for fueling which is I think what some want.
