Read Second O2 sensor in OFT Stage 2 Tune - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

majixmatrix · 07-22-2018, 12:24 PM

I'm moving back to fascist Massachusetts and need to pass inspection. I have a JDL catless header and an OFT stage 2 tune which makes the second O2 sensor will read as not ready and I will fail and probably be red flagged. Instead of installing the original header I plan on using an O2 spacer.

This means I'll either have to flash back to the original tune which I know reads the second O2 sensor, or modify my current map in RomRaider to properly read the second O2 sensor which I would prefer (has things like quieter start-up which could help me during inspection). How might I achieve this via RomRaider?

Also a long shot, but does anybody have experience using the Vibrant or MXP O2 spacers?

Much thanks!

tomm.brz · 07-22-2018, 01:15 PM

Ots roms do use the Second lambda, they just disable p0420 dtc error i think. You could just enable again the code and hope that it doesnt trigger CEL immediately or yes, use also a spacer

guybo · 07-23-2018, 06:31 AM

Don't they do a visual inspection in MA? They will see there's no cat. Also, the car will fail the readiness test with the OFT tune and they can see if the P0420 is disabled (I think anyway). Others have posted in here from MA and they are pretty hardcore on emissions there.

You'll have to run a while on the default tune so that all the readiness tests have been run, so an O2 spacer may be your best bet. You can't clear codes then run real quick for an inspection, this much I am sure of otherwise everyone would do it and it'd be too easy to beat the inspection.

Hey, we need a Masshole for this! Where you at??

07-22-2018, 12:24 PM	#1
majixmatrix BRZ Wannabee Join Date: Jan 2017 Drives: 2013 Limited BRZ Location: Worcestor, MA Posts: 94 Thanks: 4 Thanked 4 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Read Second O2 sensor in OFT Stage 2 Tune I'm moving back to fascist Massachusetts and need to pass inspection. I have a JDL catless header and an OFT stage 2 tune which makes the second O2 sensor will read as not ready and I will fail and probably be red flagged. Instead of installing the original header I plan on using an O2 spacer. This means I'll either have to flash back to the original tune which I know reads the second O2 sensor, or modify my current map in RomRaider to properly read the second O2 sensor which I would prefer (has things like quieter start-up which could help me during inspection). How might I achieve this via RomRaider? Also a long shot, but does anybody have experience using the Vibrant or MXP O2 spacers? Much thanks!

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07-22-2018, 01:15 PM	#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)	Ots roms do use the Second lambda, they just disable p0420 dtc error i think. You could just enable again the code and hope that it doesnt trigger CEL immediately or yes, use also a spacer

07-23-2018, 06:31 AM	#3
guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	Don't they do a visual inspection in MA? They will see there's no cat. Also, the car will fail the readiness test with the OFT tune and they can see if the P0420 is disabled (I think anyway). Others have posted in here from MA and they are pretty hardcore on emissions there. You'll have to run a while on the default tune so that all the readiness tests have been run, so an O2 spacer may be your best bet. You can't clear codes then run real quick for an inspection, this much I am sure of otherwise everyone would do it and it'd be too easy to beat the inspection. Hey, we need a Masshole for this! Where you at??

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