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Old 01-18-2005, 02:11 PM   #1
TJRCS
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Default WRX borned to be aggressive???

I wasn't sure whether i should put this into here or Engine Management/Tuning, but I trust my decision.

I've driven aprroximately 11,000 miles on 04 WRX. I also had Cobb Stage 1 for almost 6,000 miles as well. Recently, my peak boost went down about 1~1.5 PSI compare to when I first had my AP Stage 1. So I reset my ECU this morning, did Vishu's ecu learning trick. Now I'm back to 14.7 PSI Target boost. Car feels much more responsive and more pulling as well.

What caused my car to lose boost during past 5K miles?? I never experienced ping. Always used Shell/BP/Chevron 93 oct premium fuels. Is it because I tend to baby my car??? I go WOT like once or twice a day. And most of time i shift at 3.5K RPM. Do I have to drive more aggresively to keep my wrx in alert??? Thank you.
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Old 01-18-2005, 02:51 PM   #2
Unabomber
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Your problem is you drive like a grandma. And yes, this is the wrong forum.
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Old 01-18-2005, 03:00 PM   #3
MomoWRX
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Quote:
Originally Posted by Unabomber
Your problem is you drive like a grandma. And yes, this is the wrong forum.
lol Try posting in the Engine management forum you'll have better luck....I've heard a couple of cases like yours
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Old 01-18-2005, 04:07 PM   #4
TJRCS
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haha thanx, Ron. I can't mad at you cuz i just read most of your FAQs. oh well... I guess I should ENJOY driving more!! I'm putting Crucial Racing UP/DP and Samco IC hoses soon, so hope that those will entertain my ride even more.

so is it really my grandma's driving style???
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Old 01-18-2005, 08:44 PM   #5
antimullet
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Quote:
Originally Posted by Unabomber
Your problem is you drive like a grandma. And yes, this is the wrong forum.
You ruthless one!.

It may be because accessports occassionally are lean and the ecu pulls more and more timing as it realizes some "kook" tuned it wrong...
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Old 01-19-2005, 11:49 AM   #6
TJRCS
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I never heard my engine "Knock" or "ping" before. Is there any chance that ECU can pull out timing to improve fuel economy??? But i thought that advanced timing uses LESS fuel than lowered timing which has richer mixture.
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Old 01-19-2005, 02:51 PM   #7
mbiker97
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Quote:
Originally Posted by TJRCS
I never heard my engine "Knock" or "ping" before. Is there any chance that ECU can pull out timing to improve fuel economy??? But i thought that advanced timing uses LESS fuel than lowered timing which has richer mixture.
Changing the timing doesn't affect the air/fuel ratio. It does change the cylinder pressure, and EGTs though. If anything the ECU would generally add timing for better fuel economy.
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Old 01-19-2005, 03:37 PM   #8
TJRCS
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which also means that it (timing) is NOT related to boost???
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Old 01-20-2005, 11:15 AM   #9
mistaare
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how commen is this?
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Old 01-20-2005, 11:16 AM   #10
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common
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