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Old 11-16-2007, 06:11 PM   #1
ZR2_S10
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Member#: 83865
Join Date: Mar 2005
Chapter/Region: MWSOC
Location: Southeast Michigan
Vehicle:
2005 Saab 9-2X Aero
Midnight Blue

Default Fueling - I'm Lost

Mods found here:
http://saab92x.com/viewtopic.php?pid=218635

Despite what some say, I have had great luck with Braden's XPT maps. Ran his Stage 2, and now his 2.5

I have not had any 'good' luck getting my fueling in order, and am begining to belive that I have some kind of mechanical issue.

With the stock airbox, the fueling is 'closer' but not perfect.

I am WAY too rich in boost.


I have the injector scalar at 485 (not what he had it set at) but have the SPT intake, which the map was not tuned for.

Is there any reason why at idle (with the 485 scalar) the AF Learning would be around +2 and my AF L (b),(c),(d) would all be around -8.

At WOT, above ~10psi my AFR is around 9.6 (LC-1) but the map is calling for 10.8.

I'm lost. I have moved the scalar up and down, no real change in AFR.
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Old 11-17-2007, 12:16 AM   #2
JMS77
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Chapter/Region: Tri-State
Location: NJ Precision Tuning
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Bump the scalar value up to about 535 and raise the latency value about .02 points at 14v. Then let everything warm up...you know the drill.... and do a pull logging AFR. Let me know what happens.
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Old 11-17-2007, 02:21 AM   #3
mickeyd2005
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Member#: 122595
Join Date: Aug 2006
Chapter/Region: NWIC
Vehicle:
2005 LGT Wagon
ABP

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I agree with jms77. Your injector scalar is too low.

However, if AFR learning B, C, and D are all the same and yet AFR learning A is very large positive (which it will be after you correct your scalar) then you might have an exhaust leak before your front O2 sensor. Check your headers thoroughly.
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