02 sensor and apexi power fc
#2
Scooby Regular
iTrader: (13)
Yes you can. It's within the "Sensors..." menu. Then look for "O2..." with engine idling. It should continually cycle up and down between 0 and 0.9V if working fine.
Make sure O2 feedback is turned on in the "Etc." menu first though (it should already be, obviously)...
Make sure O2 feedback is turned on in the "Etc." menu first though (it should already be, obviously)...
Last edited by joz8968; 22 February 2011 at 10:54 PM.
#5
had a look today con the commander, but it is jap, so cant tell if it is turned on, but i would guess it is.
when engine is at running temp, and idling in the sensor check 02S reads 0.00 today, but when you go faster or slower when driving, it reads around 0.00, but if you have it as a constant speed it reads around .064v
the other day on a cold engine, at idle, it was around 0.02-0.08 ish
any ideas?
when engine is at running temp, and idling in the sensor check 02S reads 0.00 today, but when you go faster or slower when driving, it reads around 0.00, but if you have it as a constant speed it reads around .064v
the other day on a cold engine, at idle, it was around 0.02-0.08 ish
any ideas?
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#13
Scooby Regular
iTrader: (13)
Yep, it's OFF!
Turn it back on and recheck for the cycling - it'll prob then be working okay!
Scroll to the "02..." line with the ^ or V buttons. Then press NEXT. Change to "7y" using the ^ or V (or it might be the < or >) buttons. Press NEXT twice to save. Then come out of the menu using the PREV button. Then go back in just to make sure it did indeed change to "7y".
Then recheck the cycling in the other "Sensors..." menu, etc...
Turn it back on and recheck for the cycling - it'll prob then be working okay!
Scroll to the "02..." line with the ^ or V buttons. Then press NEXT. Change to "7y" using the ^ or V (or it might be the < or >) buttons. Press NEXT twice to save. Then come out of the menu using the PREV button. Then go back in just to make sure it did indeed change to "7y".
Then recheck the cycling in the other "Sensors..." menu, etc...
Last edited by joz8968; 27 February 2011 at 01:55 PM.
#15
Scooby Regular
iTrader: (13)
- It won't affect the peak bhp + lb ft as it's automatially disabled when in open loop i.e. on boost above a certain (low) rpm point. Then when parameters allow, it automatically reverts back to closed loop again i.e. lambda enabled.
- Yeah, mpg will suffer as the lambda, being disabled, cannot constantly sample the O2 content in the exhaust gases, so is incapable of telling the ECU to trim (or add) fuel to try to keep to the perfect stoichiometric 14.7:1 A/F ratio...
- Yeah, mpg will suffer as the lambda, being disabled, cannot constantly sample the O2 content in the exhaust gases, so is incapable of telling the ECU to trim (or add) fuel to try to keep to the perfect stoichiometric 14.7:1 A/F ratio...
Last edited by joz8968; 27 February 2011 at 02:22 PM.
#16
Scooby Regular
iTrader: (13)
The net result of running with O2 disabled is heavy(er) fuel consumption/bad emissions due to over rich closed loop AFRs.
Whether that would lead to bore wash and/or a carbon'd up engine over a long period of time, I don't know...
Whether that would lead to bore wash and/or a carbon'd up engine over a long period of time, I don't know...
Last edited by joz8968; 27 February 2011 at 02:29 PM.
#22
http://www.paulr33.com/powerfc-faq/powerfc-faq.htm#40b
If you have 0/2 Feedback turned off the PowerFC will not enter its closed loop feedback mode and will waste fuel and be very un-economical. Expect bad fuel economy
If you have 0/2 Feedback turned off the PowerFC will not enter its closed loop feedback mode and will waste fuel and be very un-economical. Expect bad fuel economy
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