Why does my Advance Multiplier keep dropping? - Page 8 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

steve99 · 04-17-2015, 11:44 PM

Quote:

Originally Posted by LucasFT86

@steve99 I just put in a K&N drop in filter today and idle afr switches from 14.7 to 14.8. Am I running a tiny bit lean? Should I reflash the stage 1 tune?

no need to reflash unless you actually changing tune parameters have read of Flashing Reset Learning link below
ecu constantly learns it not a one off event after flash.

Afr will vary like that as ecu compensates and its targeting the commanded afr value and measuring the afr from 02 sensor then adjusting fuel trims to try to make both values equal.

Kodename47 · 04-18-2015, 03:58 AM

Quote:

Originally Posted by LucasFT86

@steve99 I just put in a K&N drop in filter today and idle afr switches from 14.7 to 14.8. Am I running a tiny bit lean? Should I reflash the stage 1 tune?

Your AFR will fluctuate under normal idle no matter what.

LucasFT86 · 04-18-2015, 12:22 PM

Thanks guys

Phantobe · 04-18-2015, 11:59 PM

The struggle is real 91 sucks ass.

Switching to E85 soon lol.

funked1 · 04-22-2015, 09:58 AM

Quote:

Originally Posted by moK

That Chevron station next to McDonalds on Nobel and Costa Verde was pretty much my only gas station for 2 years when I went to school in SD

Me too, but it was a Shell then (Muir class of 93 lol)

Tonypepatone · 10-17-2016, 05:29 PM

I exclusively ran 91 e0 and had no problems staying at 1. Went on a trip and filled up with mobil 93 now it's at.35. Filled up with the usual when i got back hopefully iam goes back to normal. For now i butt clinch.

Sent from my SM-G930P using Tapatalk

04-18-2015, 11:59 PM	#102
Phantobe Senior Member Join Date: Aug 2013 Drives: 14 Ultramarine FR-S Location: SOCAL Posts: 795 Thanks: 381 Thanked 413 Times in 231 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	The struggle is real 91 sucks ass. Switching to E85 soon lol. __________________ 2014 Ultramarine Scion FR-S 2000 Integra LS - SOLD

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10-17-2016, 05:29 PM	#104
Tonypepatone Member Join Date: Apr 2015 Drives: 2013 ScionFRS Location: Kansas City MO Posts: 33 Thanks: 20 Thanked 9 Times in 8 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I exclusively ran 91 e0 and had no problems staying at 1. Went on a trip and filled up with mobil 93 now it's at.35. Filled up with the usual when i got back hopefully iam goes back to normal. For now i butt clinch. Sent from my SM-G930P using Tapatalk

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