Hello guys
I have an AEM UEGO attached to B29 (EGR) and configured in closed loop as the wideband input.
At logs, I see that past 4000rpm , the stock O2 (corrected) differs from the UEGO a bit. Eg, 0.87 lambda at stock and 0.83 at AEM. No matter what, Hondata uses the Stock O2 for closed loop (even setting the EGR pin as wideband input), so I cant fix my A/F ratio. My WOT target is 0.86.
Thats a bad stock O2 maybe ?
Any fixes besides changing to a new stock wideband sensor?
Thanks
Stock primary O2 vs Analog Wideband Input
Stock primary O2 vs Analog Wideband Input
2004 EVO VIII - www.nrteam.org
Re: Stock primary O2 vs Analog Wideband Input
just tought about cheating my WOT target to 0.90 to see if my AEM reads 0.86 ...
2004 EVO VIII - www.nrteam.org
Re: Stock primary O2 vs Analog Wideband Input
What vehicle are you referring to?
Re: Stock primary O2 vs Analog Wideband Input
Sorry... Civic SI 2008 with K24Z block. Invidia header, Injen CAI, ID1000 injectors, 12.5:1 pistons, ethanol. FlashPRO bt
2004 EVO VIII - www.nrteam.org
Re: Stock primary O2 vs Analog Wideband Input
How exactly do you have the AEM wideband wired (power, ground, signal)?
Re: Stock primary O2 vs Analog Wideband Input
Power - ign 12v fusebox
Ground - under fusebox (chassis)
Signal - UEGO white wire to ECU B29 EGRL
Voltage offset 0v
Ground - under fusebox (chassis)
Signal - UEGO white wire to ECU B29 EGRL
Voltage offset 0v
2004 EVO VIII - www.nrteam.org
Re: Stock primary O2 vs Analog Wideband Input
At low rpm they seem to show very similar AFRs
The uego sensor is 2" from stock
The uego sensor is 2" from stock
2004 EVO VIII - www.nrteam.org
Re: Stock primary O2 vs Analog Wideband Input
Unfortunately I do not have any way for you to make an adjustment to make them match in this instance.
Re: Stock primary O2 vs Analog Wideband Input
I will try a new O2 sensor.
Must be OEM HONDA ?
Must be OEM HONDA ?
2004 EVO VIII - www.nrteam.org
Re: Stock primary O2 vs Analog Wideband Input
About the only thing I can think for you to try would be to ground the Wideband to one of the ground wires at the ECU.