Stuck in Open Loop? - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

RedFRS4me · 06-03-2016, 02:21 PM

Quote:

Originally Posted by theadmiral976

That is brilliant! Excuse my naivete, but would you anticipate any long-term issues by doing this adjustment?

So far so good. I will be checking for any long term effects but from what I gather some folks have been running like this already. Mostly the ones with secondary o2 delete

theadmiral976 · 06-03-2016, 04:48 PM

Quote:

Originally Posted by RedFRS4me

So far so good. I will be checking for any long term effects but from what I gather some folks have been running like this already. Mostly the ones with secondary o2 delete

Thank you for the reply. I'll try this soon!

R2 · 04-20-2017, 12:03 AM

Quote:

Originally Posted by RedFRS4me

So far so good. I will be checking for any long term effects but from what I gather some folks have been running like this already. Mostly the ones with secondary o2 delete

Is this still working for you? I believe I am having the same issue; I plan to try zeroing the AF3 tables and give that a shot.

steve99 · 04-20-2017, 12:26 AM

Quote:

Originally Posted by R2

Is this still working for you? I believe I am having the same issue; I plan to try zeroing the AF3 tables and give that a shot.

That fix only works for rear o2 sensor issue. Just make sure you dont have exhaust leak or other issue.

People using rear o2 sensor as input for flex fuel kits disavle rear 02 sensor trims.

It can result in slightly less fuel economy when highway cruising.

Its never a good practice to start masking off stuff in the tune unless your 100% sure

RedFRS4me · 04-21-2017, 08:25 PM

I've been running with the zeroed af3 tables for a while now and it hasn't given me any issues. Car drives normally with the bad sensor still downstream. But Steve is right about making sure its not an exhaust leak.

R2 · 05-17-2017, 01:02 PM

This has worked for me as well. Finally confirmed it with a 2h drive last weekend.

sato · 05-19-2017, 07:30 AM

So, if I read correctly, the solution might be a new O2 sensor or zeroing out for the sensor reading? Please keep us updated on progress checks if you remember to. Much appreciated.

Sent from my E6653 using Tapatalk

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05-17-2017, 01:02 PM	#34
R2 Senior Member Join Date: Nov 2012 Drives: FR-S Location: Sask., Canada Posts: 250 Thanks: 84 Thanked 89 Times in 55 Posts Mentioned: 21 Post(s) Tagged: 1 Thread(s)	This has worked for me as well. Finally confirmed it with a 2h drive last weekend.

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