adjusting idle afr?
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Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
adjusting idle afr?
I was just curious how the open loop and closed loop afr is adjusted. At idle my blms are 133 and WB shows 14.7 to 15.2... Also will adjusting idle afr affect cruise and wot? Thanks
Last edited by TPI-Formula350-; Jul 12, 2011 at 09:29 PM.
Thread Starter
Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: adjusting idle afr?
anyone? Also I should add I'm using Tuner Pro 5
Last edited by TPI-Formula350-; Jul 13, 2011 at 03:44 PM.
Senior Member
Joined: Feb 2005
Posts: 617
Likes: 0
From: Rochester,NY
Car: 1993 Caprice wagon "Shammoo"
Engine: tpi'd 406, with P4 ebl EBL 730 ECM
Transmission: custom "4L65" swap.
Axle/Gears: 3.42:1 with posi
Re: adjusting idle afr?
Can't say this would be the best way, but since AFR is indicative of rich/lean. I'd add/cut fuel around my rpm and Kpa idle points It won't be just one point, it will be a target with your ideal idle point in the middle of the bullseye.
Maybe others have figured out a better way.
Maybe others have figured out a better way.
Thread Starter
Supreme Member
Joined: Aug 2003
Posts: 1,644
Likes: 4
From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: adjusting idle afr?
yeah it was close but i got it alittle better. Between 14.6-14.9 now, I went into MAF table 1 , think it was row (4)55v and went from 7.01 to 8.00..Thanks for the help guys
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