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Old 10-31-2002, 05:50 PM   #1
Scooby Specialist
Member#: 20768
Join Date: Jul 2002
Location: Los Angeles, CA
2009 IS-F



Here is the thing. UTEC on the way, should be here today or tomorow. Coming with Stage 1 on it. Should be relatively O.K., EXCEPT, I have an up pipe, and a CAI. I don't really want to remove the CAI (Pain in teh arse, and I am going to the track on the weekend, and don't think I will hae time before then to remove the CAI, but definitely want to use the UTEC at the track)I was hoping that someone out there, with a working map on his/her UTEC, with the same mods, could chime in with the changes they made, or a copy of the map. ANY help is appreciated.


P.S. At this time, I have no other mods, including exhaust mods.
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Old 10-31-2002, 06:59 PM   #2
Jon [in CT]
*** Banned ***
Member#: 2992
Join Date: Nov 2000
Chapter/Region: NESIC
Location: Connecticut, USA
02 WRX Sedan


This sounds like a recipe for disaster. Aftermarket intakes change the air flow through the MAF sensor in unpredictable ways. Some, like the APS, cause a "Fuel Trim Too Lean" trouble code, whereas others, notably the Injen, cause a "Fuel Trim Too Rich" trouble code.
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Old 10-31-2002, 10:24 PM   #3
Scooby Guru
Member#: 4414
Join Date: Feb 2001
Location: Dublin, CA
2002 WRX Sedan
Midnight Black


Yeah, with an aftermarket intake and using the MAF to tune (as the UTEC does) I wouldn't trust someone else's map. I would definitely want to come up with my own. Aftermarket intakes can cause a certain amount of unpredictability for the MAF readings.
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Old 11-01-2002, 01:59 AM   #4
Z1 Performance
Former Vendor
Member#: 9327
Join Date: Aug 2001
Location: Z1Auto.com

Copying others maps, even on a stock car should be avoided like the PLAGUE.

If you are unsure about the tuning of it, have TXS refer you to a dealer comfortable with the tuning side of things.

As for the intakes, some affec tht cars ecu, some do not. While we don't sell the part, we ahve tons of customers with the Injen, and not one E light, even when coupled with substantial other mods. The APS one though has caused problems for a few customers. Units lik eht AEM, while not really a great banfg for the buck mod, have a pipe diamter and sensor location identical to stock.

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Old 11-01-2002, 02:14 AM   #5
Scooby Guru
Member#: 18446
Join Date: May 2002
Chapter/Region: MAIC
Location: Stratford, CT
2002 WRX wagon


I had a stage II setup with a CAI until last Sunday when I put on an uppipe. This is a sample of my log prior to the uppipe (and prior to turning my abc up two turns from where I originally had it; all the way clockwise):
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Old 11-01-2002, 02:27 AM   #6
Scooby Guru
Member#: 18446
Join Date: May 2002
Chapter/Region: MAIC
Location: Stratford, CT
2002 WRX wagon


And here's a log after I installed the uppipe.

Now I'm still learning my way around the UTEC, but it would seem that my CAI and uppipe are not producing any extreme numbers.
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Old 11-01-2002, 01:12 PM   #7
Scooby Specialist
Member#: 15599
Join Date: Feb 2002
Chapter/Region: MWSOC
Location: Livonia, MI

How come you aren't running much boost (your MAP readings are around 10-11.5 psi)? What is your in-car boost gauge reading?

Oh wait...never mind. I see that you didn't have you foot in it on the second run... And, if you were at WOT on the first run, you need to adjust your TPS setting in the UTEC. You are only reading 97%...
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