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10-11-2012, 08:27 PM | #1 |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
I just moved up a few months ago from Florida and I had my 04 wrx tuned with Jester Tuning at Titan Motorsports and he did an amazing job. But now that I'm in upstate NY and the weather is starting to be pretty cool (40-50*f)... So I went tonight for a fun spirited run and my car is running ridiculously rich at 10.0 flat (reading afr with my aem uego wideband) and when it reaches 5500rpm it bogs really bad and I let off the gas... I'm only running 18psi, bigger fmic, turboxs bov, intake, and 3" tbe
I'm in upstate Patterson NY Thanks in advance
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10-11-2012, 08:48 PM | #2 |
Scooby Guru
Member#: 70395
Join Date: Sep 2004
Chapter/Region:
MAIC
Location: Da-boonies,Va
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So..........what's the question?
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10-11-2012, 09:15 PM | #3 |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
Why was it that when I was in Florida and her tuned she was running awesome and now that I moved up to NY the car is super rich and bogging past 5500rpm... What's wrong? What's causing this?
And no I ain't new to turbo cars as I also have a turbo sentra spec v that I built... |
10-11-2012, 09:29 PM | #4 |
Scooby Newbie
Member#: 331188
Join Date: Sep 2012
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No smart ass here. Air becomes thicker (dense) the cooler the air becomes. Your car was tuned in a relative humanity density air point. ( Flordia very high humanity and probably high 80 90 degrees) Now the colder air is thicker meaning there is a lot I say a lot more air being brought into the engine. The ecu thinks the motor is at higher rpms due to more air flow. Turn your boost up to compensate the richness, but don't do this because this = excessive boost pressures. It would help correct you air fuels ratio but will mess with other shiz it.
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10-11-2012, 09:39 PM | #5 | |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Quote:
No offense, but you should probably stick to the Newbie forum and stay out of Technical for a while. |
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10-11-2012, 09:45 PM | #6 |
Scooby Specialist
Member#: 65140
Join Date: Jun 2004
Chapter/Region:
NWIC
Location: Seattle, WA
Vehicle:2007 STI Limited#213 05 STI (rip) 03 WRX (rip) |
oh the relative humanity of it...
I wonder what your temperature compensation table looks like? Also, has anything else changed with the car? 10/1 ratio doesn't seem like it should cause the car to bog badly, something else may be up. I would check everything and make sure you don't have a boost leak after the turbo. I am no pro but if your using the MAF and you loose air after it has been metered it could theoretically cause a rich condition. That being said I have blown up two STI's so my name is mud. Last edited by BlackEyeII; 10-11-2012 at 09:58 PM. |
10-11-2012, 09:55 PM | #7 | |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
Quote:
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10-11-2012, 10:02 PM | #8 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
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10-11-2012, 10:51 PM | #9 |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
I'll do a boost leak later in a bit... Nothing else has been changed nor touched... Lets hope it's just a leak lol
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10-12-2012, 06:28 PM | #10 |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
So I have a leak right where the intercooler meets the bov... I sprayed soapy water and saw bubbles
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10-13-2012, 04:11 PM | #11 |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
Any other ideas? Now I can't even build boost and its pig rich!! I can email someone my data logs...
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10-13-2012, 04:15 PM | #12 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
Did you fix the leak? Do you have an exhaust leak? Have you taken any logs?
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10-13-2012, 04:33 PM | #13 |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
Lol exhaust leaks won't do this... I did find a boost leak where by bov mounts to in my tmic... I can email my logs to someone...
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10-13-2012, 04:46 PM | #14 |
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region:
RMIC
Location: Broomfield, CO
Vehicle:2005 STi 2012 WRX |
It will if it's between the engine and the uppipe.
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10-13-2012, 07:01 PM | #15 |
Scooby Specialist
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Chapter/Region:
SWIC
Location: Nor Cal
Vehicle:2004 Spec-C Type RA What MAF? -Speed Density! |
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10-14-2012, 10:11 AM | #16 |
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MWSOC
Location: North Dakota
Vehicle:2015 WRX Limitec |
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10-14-2012, 07:47 PM | #17 | |
Scooby Specialist
Member#: 322963
Join Date: Jun 2012
Location: upstate NY
Vehicle:04 wrx psm |
Quote:
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10-14-2012, 08:01 PM | #18 |
Scooby Specialist
Member#: 191967
Join Date: Oct 2008
Location: Vancouver
Vehicle:2005 EVO VIII open source tuning subaru |
a boost leak will do that, also another thing could be that your drawing more air at colder temps and hitting untuned cells of your maf.
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10-15-2012, 05:23 PM | #19 |
Scooby Specialist
Member#: 268354
Join Date: Dec 2010
Chapter/Region:
NESIC
Location: Massachusetts
Vehicle:02 WRX 05 LGT Slow Automatics |
You could also have a failing sensor for the wideband. So many things could be happening here. Fix the leak and report back, good chance that's the problem.
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