wideband 02 sensor + ECU - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Longuy · 05-04-2022, 10:58 PM

does the ECU need access to a wideband O2 sensor for the car to function better... or is it used in conjunction, in tuning the car with stock o2 sensors. I've bought a wideband sensor and gauge... I know it can be logged but is it possible or beneficial to have it tied into the ECU?

I couldn't find any threads on this topic if you could link me would be great

Thank you for any response

tomm.brz · 05-05-2022, 12:44 AM

you can force the ecu to use it during open loop state of the ecu, the ecu will apply then a closed loop correction into the open loop using your wideband
thwre are failsafe but best usually, and how it ia used by many tuner, is that you use your wideband as a reference to rescale the stock lambda and make. it similar to the wideband using the stock one

Longuy · 05-06-2022, 12:19 PM

I see how it works now... I found it in the ProECU help file

thanks again for your reply

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05-05-2022, 12:44 AM	#2
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,277 Thanks: 515 Thanked 1,121 Times in 811 Posts Mentioned: 70 Post(s) Tagged: 0 Thread(s)	you can force the ecu to use it during open loop state of the ecu, the ecu will apply then a closed loop correction into the open loop using your wideband thwre are failsafe but best usually, and how it ia used by many tuner, is that you use your wideband as a reference to rescale the stock lambda and make. it similar to the wideband using the stock one

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