06-20-2007, 05:39 AM
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#1
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Registered User
Join Date: Nov 2006
Location: Bastrop, TX
Posts: 705
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Backfire through intake?
Hello,
My car has done this from new, however it is happing more recently. Sometimes when I first start the car for the day, it will make a popping sound, like a burp or backfire, from the intake. Just one or too pops.
The car has been de-snorkeled, but retains the original air box.
Car seems to run fine otherwise, one time a CEL came on and blinked and then went off never to return. I took it to the dealer and they said that the computer does not have any error codes.
Any thoughts?
Thanks,
James
__________________
2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
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06-20-2007, 09:18 AM
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#2
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Registered User
Join Date: Feb 2005
Location: Seattle is now home!
Posts: 398
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sounds like a vac leak. mine did this after "I" installed the evo intake. I fixed the vac leak and it never did it again.
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06-20-2007, 10:49 AM
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#3
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Registered User
Join Date: Feb 2006
Location: Virginia
Posts: 1,659
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Mine did that when the Mass Air Flow sensor failed.
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2000 Arctic Silver/Black, Hard Top, On Board Computer
PNP Rear Speakers, HAES 6-Channel Amp, Avic Z140BH,
Painted Bumperettes, 2004 (OEM) Top, Homelink integrated in dash with Targa switch, 997 Shifter, Carrera Gauge Cluster with silver gauge faces, heated 12-way driver & 8-way passenger seats, Litronics, silver console
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06-20-2007, 11:16 AM
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#4
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Registered User
Join Date: Nov 2006
Location: Bastrop, TX
Posts: 705
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I am sure that this has been discussed before, but here it goes anyways.
What are the symptoms of a MAF failure? The car does seem lately to be less quick than before, I thought it may just be a few tanks of crappy gas.
Thanks,
James
__________________
2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
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06-20-2007, 11:29 AM
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#5
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Registered User
Join Date: Jul 2006
Location: Where the Sewer Meets the Sea, CA. USA
Posts: 2,695
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jhandy, your issue is a symtom of a MAF becoming less efficent, You can try removing it and spraying it down with electrical parts cleaner, and allowing it to sit in the sun for 10 minutes to dry... reinstall and you should feel some power return.
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