Second lambda extender - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

gpvecchi · 03-21-2022, 02:07 AM

Can you please suggest me where to buy, or find the plugs to make it?
Thank you

tomm.brz · 03-21-2022, 03:05 AM

secondary O2 spacer doesn't work good on this platform

It will mess with the A/F#3 correction, unless you disable it, so your cruising and transient afr will be a mess

It will trigger a CEL after a while, even if you disable the A/F#3 corrections, can t remember the code but it is the DTC that relates to "sensor 2 bank1 too lean".. again, unless you disable the DTC (and if ecutek found the DTC in first place)

It MAYBE corrects the P0420 cat DTC, which requires anyway a single click on the tune to be deactivated and doesn't influence anything else

When you disable A/f#3 and all DTCs you can even delete the O2 sensor, so the spacer is useless at this point

Can't help you to find a good O2 spacer, but if you use it, use it temporary because it messes things

gpvecchi · 03-21-2022, 08:37 AM

Sorry, I hadn't been clear. I don't mean a spacer to prevent CEL, I meant a wire extender...

whataboutbob · 03-21-2022, 10:13 AM

This is the company I used to have an extension made: https://iwireusa.com/

03-21-2022, 02:07 AM	#1
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	Second lambda extender Can you please suggest me where to buy, or find the plugs to make it? Thank you

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03-21-2022, 03:05 AM	#2
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,196 Thanks: 500 Thanked 1,067 Times in 775 Posts Mentioned: 65 Post(s) Tagged: 0 Thread(s)	secondary O2 spacer doesn't work good on this platform It will mess with the A/F#3 correction, unless you disable it, so your cruising and transient afr will be a mess It will trigger a CEL after a while, even if you disable the A/F#3 corrections, can t remember the code but it is the DTC that relates to "sensor 2 bank1 too lean".. again, unless you disable the DTC (and if ecutek found the DTC in first place) It MAYBE corrects the P0420 cat DTC, which requires anyway a single click on the tune to be deactivated and doesn't influence anything else When you disable A/f#3 and all DTCs you can even delete the O2 sensor, so the spacer is useless at this point Can't help you to find a good O2 spacer, but if you use it, use it temporary because it messes things

03-21-2022, 08:37 AM	#3
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	Sorry, I hadn't been clear. I don't mean a spacer to prevent CEL, I meant a wire extender...

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