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Help!!! with O2 Sensors & Fuel Adjustments

Posted: Tue Jul 21, 2015 2:25 am
by cbye
All parameters set

INJECTORS
1000cc and dead times

WIDEBAND
D10eld

-----------------Now my primary o2 was removed and wires hanging(not used) because wideband doesn't use stock wiring, I know not many people do run secondary o2, but sounds like could help closed loop operation?? Does s300 support a second o2? should I just connect it to the primary wiring??

MAP
stock

------------------Ok so im up running and datalogging, everything seems to be reading, but the o2 reading on Sensors window still has a reading even thou its not connected to o2 under car?? even thou not plugged in still reading 3.4vish............ cuz A/F on gauge lil off from sManager AF values, is this because of the o2 sensor reading??


Adjusting for RICH/LEAN Conditions
A/F gauge and sManager saying its running lean... I have rc1000's with fuel flowing thru AEM rail and reg at 45-50psi
would I adjust overall fuel trim? or low speed fuel mapping???

Which leads me to this question..... "there is the little flickering going on as the squares are highlighted/unhighlighted and doin there thing, and seemed to settle out on a four square block, is that normal?? but it was running lean so shut her down.... the engine seemed to be running ok, but AF was 17-18 and was scared to rev up and I wasn't exactly sure which adjustments to make, was smanger trying tell me something with the highlighting??

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Tue Jul 21, 2015 9:56 am
by Spunkster
A wideband should not use the stock O@ sensor wiring. The best input is the ELD.

The highlighting of the cells is to show where in the tables it is reading. IF it is running lean then you need to add more fuel to the areas it is reading lean.

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Tue Jul 21, 2015 2:29 pm
by cbye
wideband is on eld...... but i have two o2 sensors, a narrowband after cat

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Tue Jul 21, 2015 3:04 pm
by Spunkster
The narrowband after the cat cannot be used.

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Mon Jul 27, 2015 6:23 am
by cbye
o2 after cat is now disconnected, still getting a constant 3.81v reading on primary o2 sensor. Is this effecting my a/f??? Should I just eliminate D14 wire??

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Mon Jul 27, 2015 10:03 am
by Spunkster
Post your calibration as well as a datalog made with that calibration.

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Mon Jul 27, 2015 2:50 pm
by cbye
I just lost my S300 virginity so go easy on me=) lol.... I have parameters down pretty well.... but know im far from perfection with the fuel adjustments etc.... I haven't even tried to mess with ignition stuff yet, im following instruction so any Tips or advice, hey anything helps....... I JUST POPPED MY HONDATA CHERRY!!!!!!!! lol

oh yeah, I don't have idle adjustment screw on my throttle body, only throttle plate adjustment????

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Mon Jul 27, 2015 9:01 pm
by AREA876
You need to post your calibration as well

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Tue Jul 28, 2015 5:00 pm
by cbye
Here is cal and the newest datalog I have

Re: Help!!! with O2 Sensors & Fuel Adjustments

Posted: Tue Jul 28, 2015 10:26 pm
by cbye
Getting better, but one time Check engine light flickered felt like a limiter turned on, but no Error Code? S300 is the bEE's kNEES!!!!!!!!!