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Old 10-14-2012, 03:45 PM   #1
Subariki1
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Member#: 236548
Join Date: Jan 2010
Location: Newton, MA
Vehicle:
2002 REX
WRB

Default My 02 wrx starts then dies .

I have an 02 Wrx it starts then dies , when I give it gas it runs normally . On cold starts it idles at 1500 rpm then goes to normal 500 rpm. On hot starts it almost dies but catches and goes to normal idle. I keep getting the cyl 3 misfire code. Also in third gear it struggles after 2500 rmp. HHow
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Old 10-14-2012, 03:50 PM   #2
lukeskywrx
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Member#: 59837
Join Date: Apr 2004
Chapter/Region: SWIC
Location: Nor Cal
Vehicle:
2004 Spec-C Type RA
What MAF? -Speed Density!

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Compression test would be my first thought
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Old 10-14-2012, 03:55 PM   #3
fastnoypi
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Member#: 6886
Join Date: May 2001
Chapter/Region: Tri-State
Vehicle:
MY01 EJ207 HTA35r
nothing to see, i'm stock

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are you on your stock inlet hose? check for any leaks between your maf and turbo.
This used to happen on mine before my stock inlet hose died.
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Old 10-14-2012, 09:14 PM   #4
Subariki1
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Join Date: Jan 2010
Location: Newton, MA
Vehicle:
2002 REX
WRB

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Stock inlet hose also cel light cyl 3 missfire. I have a Tbe and Dropbox k&n . I checked compression no issues also changed the coil packs and plugs. Will check the maf clean it and check vacuum hoses. Am experiencing issues in third gear at 2700 rpm . I accelerate and it hesitates a little. I was advised to clean the idle control valve? Should I bother or just do the Maf abs see. Thanks for the advice
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Old 10-15-2012, 01:43 AM   #5
cahzbrah
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Join Date: May 2012
Chapter/Region: NWIC
Location: West Seattle
Vehicle:
02 BUGEYE WAGON

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I had an issue where the engine speed would drop below 500 at idle and almost stall, it felt boggy when I drove it in 2-3rd gear around 2500 rpm, and I had misfire CELs as well as System too rich bank 1. I cleaned the MAF sensor, erased the code, and none of the symptoms came back.
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Old 10-15-2012, 02:11 AM   #6
lukeskywrx
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Member#: 59837
Join Date: Apr 2004
Chapter/Region: SWIC
Location: Nor Cal
Vehicle:
2004 Spec-C Type RA
What MAF? -Speed Density!

Default

TGVs might be sticky as well
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Old 10-15-2012, 07:33 PM   #7
Subariki1
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Location: Newton, MA
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2002 REX
WRB

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I cleaned the Maf and erased the code it was p0171 we will see. If anything, after I cleaned it on the first start it was jittery but then fine on subsequent starts it is smooth and idles nicely at 500 doesn't feel like its going to stall. Will drive it around a bit this week and follow up. Thanks for the advice guy's It's appreciated !!!!
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Old 10-16-2012, 02:52 PM   #8
nattywrx
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Chapter/Region: South East
Location: South Florida
Vehicle:
2002 WRX
Phatbotti tuned 16GXT E85

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Quote:
Originally Posted by Subariki1 View Post
I cleaned the Maf and erased the code it was p0171 we will see. If anything, after I cleaned it on the first start it was jittery but then fine on subsequent starts it is smooth and idles nicely at 500 doesn't feel like its going to stall. Will drive it around a bit this week and follow up. Thanks for the advice guy's It's appreciated !!!!
P0171 is usually a vac leak
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Old 10-16-2012, 05:58 PM   #9
WRX2EVOX
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Join Date: Feb 2009
Chapter/Region: NWIC
Location: Bend, OR
Vehicle:
04 WRX
Aspen White

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Check your manifold and tgv gaskets. Often overlooked while chasing the 0171 code. This is what ended up causing mine.
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Old 10-16-2012, 06:08 PM   #10
Subariki1
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Location: Newton, MA
Vehicle:
2002 REX
WRB

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Check engine light is back on p0303 and it starts and dies ... Am going with cleaning the idle air control valve next and checking the tgv gaskets and manifold ..
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