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Old 01-13-2012, 09:55 AM   #1
kaleonearth
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Default Another Newb Question

I'm sorry guys, I know how played out these questions are but I'm having issues and I'm new at this so please bear with me. I've done my fair share of reading but my question, as simple as it is, I still haven't found an answer. I know it's out there and I'm probably just overlooking it...

I've reflashed my map to a stage 2 and am running lean across the board. 14.7 idle and all the way through cruise. 13ish 75% to wide open. This is about 2% higher than I want. I've read enough to know what to look for but my question is more along the lines of what tables to edit to get what I want.

So if my AFR is lean from the get go do I need to edit my primary loop table adding fuel across all ranges? Does this table apply to closed loop? I haven't made any changes to the stock intake (other than silencer delete) or injectors.. So from what I've read the factory tables for those should work. What other tables should I take into consideration?

I'll even take a link that helps explain the individual tables and what editing them does to the rest of the system.

Thank you!
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Old 01-13-2012, 10:23 AM   #2
kaleonearth
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... And would Open loop Maf scaling help? I don't think closed will as my injectors are stock and my intake is stock. Please correct me if I'm wrong.
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Old 01-13-2012, 11:04 AM   #3
quazimoto
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If your intake is stock then MAF scaling is not needed. Did you log the car before going stage 2? What map are you using and what wideband? I would do a Learning View and check your fuel trims. They might indicate a preturbo MAF leak. To many people try to tune out a mechanical problem. You need to verify first that you do not have a mechanical problem before turning to investigating the map/ECU ROM.
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Old 01-13-2012, 11:32 AM   #4
kaleonearth
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I did not log it before going to stage 2 because I added all of the parts at the same time (obviously I should have). I'm using Testes101's 2004 WRX Stage 2. I'm also using an AEM UEGO. In learning view my there was a good bit of knock before, it was reducing my iam so I removed timing across the heavier throttle and am currently working on removing timing where it needs it per the FLKC table. IAM is 16 now so it's better than before.

My fuel trims are off but I'm not sure it's mechanical because they're not >+-10... I've driven 20+ miles on these learned trims but they are:

0-<5.6 = -1.66
5.6-<10 = 1.17
10-<50 = -3.03
50+ =.59

I know without logs you can't say much for these other than they're off but any advice would be greatly appreciated. Does it look like it could be mechanical? I've checked all the hoses in the engine bay and everything looks connected.
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Old 01-13-2012, 05:31 PM   #5
kaleonearth
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Anyone?
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Old 01-13-2012, 05:32 PM   #6
Kastley85891
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I would get some logs up dude

Trims look fine

Last edited by Kastley85891; 01-13-2012 at 05:38 PM.
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Old 01-13-2012, 05:50 PM   #7
Phatron
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my partner has seen cars lean out by 10-15% by removing the snorkus.

if you've done nothing then most likely you have a leak between the MAF sensor and the turbo which is causing you to lean out.

Pressure check the system. If you dont find any leaks, rescale the MAF to dial in the AFR.

And 13.0 is only 2% leaner than you'd like?!?!?! You really need to be more ~11:1

theres links on how to pressure test here

http://forums.nasioc.com/forums/show....php?t=2277357
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Old 01-13-2012, 05:53 PM   #8
kaleonearth
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I'm running leaner than I'd like to do WOT pulls. I'm going to drop the timing then post some logs if that goes well. I dropped it 4 degrees before and it seemed to get EVEN leaner when going in to OL, which makes no sense at all to me. Maybe I'm getting too much gas and it's skewing the readings?


Thanks for the response Kastley and Quazi.
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Old 01-13-2012, 05:58 PM   #9
kaleonearth
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Quote:
Originally Posted by Phatron View Post
my partner has seen cars lean out by 10-15% by removing the snorkus.

if you've done nothing then most likely you have a leak between the MAF sensor and the turbo which is causing you to lean out.

Pressure check the system. If you dont find any leaks, rescale the MAF to dial in the AFR.

And 13.0 is only 2% leaner than you'd like?!?!?! You really need to be more ~11:1

theres links on how to pressure test here

http://forums.nasioc.com/forums/show....php?t=2277357

Thanks man!
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Old 01-13-2012, 06:05 PM   #10
Kastley85891
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Agree with Ron here, I have a stock air box, no snorkus, I ran a post MAF tube also and had to add 10% on my stock MAF scale at some points
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