el-dub801 Member 44 Member For: 13y 10d Gender: Male Location: Wollongong Posted 25/03/17 02:35 AM Share Posted 25/03/17 02:35 AM Hi yall Quick question... do any tuners here use only the first o2 sensor when referencing lean/rich after flash? Link to comment https://www.fordxr6turbo.com/forum/topic/93063-02sensor-1-and-2/ Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 10m 18d Gender: Male Location: Adelaide Posted 25/03/17 05:58 AM Share Posted 25/03/17 05:58 AM What do you mean as I don't reference either as I use a wideband for true lambda calculations then after the tuning is done the factory o2 sensors are only there to maintain the target lambda set by the tune ( +/- 0.02 lambda swing ) what exactly do you want to know ? Link to comment https://www.fordxr6turbo.com/forum/topic/93063-02sensor-1-and-2/#findComment-1635177 Share on other sites More sharing options...
NathanB Member 136 Member For: 11y 10m 24d Gender: Male Location: Melbourne Posted 25/03/17 11:40 AM Share Posted 25/03/17 11:40 AM Hey would you recommend getting a wideband and gauge fitted to an xr as a way to keep an eye on it or is it a bit of overkill? Link to comment https://www.fordxr6turbo.com/forum/topic/93063-02sensor-1-and-2/#findComment-1635183 Share on other sites More sharing options...
el-dub801 Member 44 Member For: 13y 10d Gender: Male Location: Wollongong Posted 25/03/17 12:01 PM Author Share Posted 25/03/17 12:01 PM @JETURBO Just curious as my 2nd o2 sensor has never been connected. I realise now my dislexia (derr) took over when I initially wrote the post. I meant "does the ecu only use first o2 sensor for reference after flash?" Link to comment https://www.fordxr6turbo.com/forum/topic/93063-02sensor-1-and-2/#findComment-1635186 Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 10m 18d Gender: Male Location: Adelaide Posted 25/03/17 12:35 PM Share Posted 25/03/17 12:35 PM It's common for tune shops to turn off the 2nd o2 sensor especially when a big cat has been installed yes nathan it's a good idea 1 Link to comment https://www.fordxr6turbo.com/forum/topic/93063-02sensor-1-and-2/#findComment-1635188 Share on other sites More sharing options...
el-dub801 Member 44 Member For: 13y 10d Gender: Male Location: Wollongong Posted 25/03/17 12:40 PM Author Share Posted 25/03/17 12:40 PM That explains that then. To me it seems useless anyway - why have another sensor downstream. Ive logged it and its exactly the same reading, just slightly delayed. Also, @JETURBO do you know of anyone that can supply higher flowing versions of the standard 4bar bosch fuel regs? Tia Link to comment https://www.fordxr6turbo.com/forum/topic/93063-02sensor-1-and-2/#findComment-1635189 Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,331 Member For: 19y 6m 25d Gender: Male Location: Perth Posted 25/03/17 01:03 PM Share Posted 25/03/17 01:03 PM Post car O2 sensor measures cat efficiency. It has no bearing on closed the fuelling. 1 Link to comment https://www.fordxr6turbo.com/forum/topic/93063-02sensor-1-and-2/#findComment-1635190 Share on other sites More sharing options...
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