Has Anyone Tried One of these ?

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Um.... simply unplugging the O2 sensor is about 7 bucks (plus shipping) cheaper . . . . . :huh:

 
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It probably has a loop with a resister in it to mimic the voltage feedback of the O2 sensor. However, that voltage is supposed to be constantly changing and flickering up and down as the ECU constantly tries to find 14.7 stoichiometric under changing conditions, so not sure how this device avoids a ECU error code for a bad O2 sensor, which would put you in default maps, IIRC.

What are you hoping to gain from it? The ECU can compensate for quite a bit. Using a PC V requires unplugging the O2 sensor.

 
It probably has a loop with a resister in it to mimic the voltage feedback of the O2 sensor. However, that voltage is supposed to be constantly changing and flickering up and down as the ECU constantly tries to find 14.7 stoichiometric under changing conditions, so not sure how this device avoids a ECU error code for a bad O2 sensor, which would put you in default maps, IIRC.

What are you hoping to gain from it? The ECU can compensate for quite a bit. Using a PC V requires unplugging the O2 sensor.

Do the "default maps" failsafe to rich? or is this a run like crap limp mode?

 
Unplugging the O2 sensor does nothing to the ECU. It doesn't throw any codes, and it doesn't force a limp mode. The FJR actually uses the O2 sensor much much less than cars do. It runs fine without it.

When it looks for it and doesn't see it, it kinda thinks "Oh. never mind." and carries on.

 
It probably has a loop with a resister in it to mimic the voltage feedback of the O2 sensor. However, that voltage is supposed to be constantly changing and flickering up and down as the ECU constantly tries to find 14.7 stoichiometric under changing conditions, so not sure how this device avoids a ECU error code for a bad O2 sensor, which would put you in default maps, IIRC.

What are you hoping to gain from it? The ECU can compensate for quite a bit. Using a PC V requires unplugging the O2 sensor.

Do the "default maps" failsafe to rich? or is this a run like crap limp mode?
Don't honestly know. Typically the default map is ~ok~ but a little rich over the entire range to be on the safe side. Not what I would consider a performance plus. Better in some areas, worse in others. Think boggy down low, but good once you're up in the rpms and have enough air to use the slightly rich fuel mix. Probably sucks the mpg down pretty obviously.

On the FJR, it's not like a limp home mode as cars will do that only lets you use sub 3500 rpms. That would really suck on a bike.

This might be the shiznit for a PCV, but not so good on it's own with an exhaust mod.

Forgot to add that the O2 sensor open loop is always looking for a changing value on the O2 sensor voltage. If it's a steady value, the ECU assumes a bad O2 sensor.

 
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