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Old 03-06-2013, 10:24 PM   #1
voltic
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Location: Fredericksburg, VA
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2013 Rising Blue
4D Golf R

Default 08+ KSTech 73mm CAI w/ Airaid Filter for Perrin FMIC - P0103

Hey guys, I'm looking for people with the 08+ KSTech CAI for Perrin FMICs, running the Airaid filter or otherwise to weigh in on an issue I'm having.

If I give the car any more than 40-50% throttle while it's been raining, I throw a P0103 high MAF input code, and AP confirms it's pegging out at 5V. And when I say rain, I just mean rain, not like a ****ing tsunami. I can only assume that I'm getting water through the filter and it's screwing up the MAF reading, because there's no other reasonable explanation. I'm trying to determine if this is characteristic of this intake system or filter, or if I'm missing something.
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Old 03-07-2013, 12:45 AM   #2
Wicked Innovation
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semi-common issue. we use an AEM filter sock and the problem goes away.
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Old 03-07-2013, 08:16 AM   #3
xluben
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Same here. The filter sock fixed the issue.
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Old 03-07-2013, 09:34 AM   #4
nhat
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hellaflunctional

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Do you all not have fender liners?
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Old 03-07-2013, 10:03 AM   #5
Wicked Innovation
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hasnt made a difference in my customers experience.
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Old 03-07-2013, 10:59 AM   #6
xluben
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I have fender liners. I think the 11+ configuration lets more water in.
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Old 03-07-2013, 02:08 PM   #7
voltic
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Thanks for the info guys, I'll have to pick one of those filter socks up. Realistically I'm not terribly worried because I don't drive hard in the rain, but if for example someone were about to T-bone me and I had to gun it, I'd be done.
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