O2 sensors Question

[Candyx]

2008 FLHX with super pro tuner,now that i changed the AFR numbers to 13.2 beyound the limited of the O2 sensors.Does the O2 sensors still try to correct the ecm fighting my new map or are they just overrid by the new map? Should i unhook them from the system or just leave them as is?

[strokerjlk]

Originally Posted by Candyx

2008 FLHX with super pro tuner,now that i changed the AFR numbers to 13.2 beyound the limited of the O2 sensors.Does the O2 sensors still try to correct the ecm fighting my new map or are they just overrid by the new map? Should i unhook them from the system or just leave them as is?

no the sensors will not be trying to correct the ECM.
Are you sure you are set at 13.2 afr everywhere?
13.2 is a calibration setting ,designed as a attempt to achieve 14.7 afr in closed loop. you correct VE setting to obtain 13.2 in closed loop areas of the map. Then when you turn that area to closed loop by entering 14.6 in the afr table you are at a calibrated 14.7 afr (or close to it). If you are running 13.2 everywhere then you are to rich in most areas except WOT or possibly at idle.
If set at 13.2 across your map you will be washing down the Cly's with fuel and wasting a lot of fuel.
but to answer your question no need to unhook them if in open loop everywhere throughout the map. If you are in closed loop anywhere in the map then they will operate in that area only.

[Candyx]

No not everywhere just changed all the numbers that where highlighted off the can map .First two columns i set to 13.2 and then raise it column to column from the 13.2 up to 13.6 on the last one.Seems to run fine got a little rumble or pop on decel when throttle is closed.Heat is gone and runs a little faster,using a k$n filter and monster ovals slip ons.

[strokerjlk]

Originally Posted by Candyx

No not everywhere just changed all the numbers that where highlighted off the can map .First two columns i set to 13.2 and then raise it column to column from the 13.2 up to 13.6 on the last one.Seems to run fine got a little rumble or pop on decel when throttle is closed.Heat is gone and runs a little faster,using a k$n filter and monster ovals slip ons.

changing the numbers in the afr map kpa page will not change your afr. To change the afr you have to change the ve numbers.
the only way that you would change your actual afr (in the afr page) is if....the cell was 14.6 (red) this would put you in closed loop in that cell.
If you were to change that num. to anything else besides 14.6 it would take it out of closed loop and revert it back to whatever that cell was calibrated at (usually 13.2) clear as mud? LOL

[Steve Cole]

Originally Posted by strokerjlk

changing the numbers in the afr map kpa page will not change your afr. To change the afr you have to change the ve numbers.
the only way that you would change your actual afr (in the afr page) is if....the cell was 14.6 (red) this would put you in closed loop in that cell.
If you were to change that num. to anything else besides 14.6 it would take it out of closed loop and revert it back to whatever that cell was calibrated at (usually 13.2) clear as mud? LOL

Sorry but you are dead wrong. If you change the AFR setting you will change the AFR for the engine. Now with that said the VE is also part of the calculation to get to the AFR so it must also be setup correctly or the value you enter in the AFR table will be wrong. With a properly adjusted VE table you will get just what you set the AFR table too.

As for closed loop you need to only use 14.6 or it turns the system off, so if you want to make the system richer or leaner in closed loop you must calibrate not only the VE values but the closed loop bias values as well.

[Candyx]

Originally Posted by Steve Cole

Sorry but you are dead wrong. If you change the AFR setting you will change the AFR for the engine. Now with that said the VE is also part of the calculation to get to the AFR so it must also be setup correctly or the value you enter in the AFR table will be wrong. With a properly adjusted VE table you will get just what you set the AFR table too.

As for closed loop you need to only use 14.6 or it turns the system off, so if you want to make the system richer or leaner in closed loop you must calibrate not only the VE values but the closed loop bias values as well.

Thats what i thought as well,what ever my final afr number is will be fine for a stage one upgrade.The bike runs alot cooler and seems to run a little better then stock.And like i said the heat is gone that felt like my seat was going to melt.

[strokerjlk]

Originally Posted by Steve Cole

Sorry but you are dead wrong. If you change the AFR setting you will change the AFR for the engine. Now with that said the VE is also part of the calculation to get to the AFR so it must also be setup correctly or the value you enter in the AFR table will be wrong. With a properly adjusted VE table you will get just what you set the AFR table too.

As for closed loop you need to only use 14.6 or it turns the system off, so if you want to make the system richer or leaner in closed loop you must calibrate not only the VE values but the closed loop bias values as well.

That's what I was saying (maybe not clear enough) just changing your afr numbers isnt going to change your afr to what you enter in the cell.... without adjusting ve.
In this case taking a canned map and changing the number in the cell isn't necessarily what your going to end up with in that cell. ( without adjusting ve)At least from what my sniffers tell me.