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Old 11-29-2000, 10:54 AM   #1
CRZ_MSL
Scooby Newbie
 
Member#: 1610
Join Date: Jun 2000
Question Intake Question

Has anyone taken a look at thier airflow sensor lateley? I have used a K&N panel filter for the past 130,000 miles. I keep it well oiled. The leading edges of my airflow sensor have a thin layer of dust/crud build up. Does anyone who has stuck with a paper filter have similar buildup?

In front of the airflow sensor is a wire mesh. This is probably there to protect the sensor from debris that get sucked into the intake, but if you are using a filter there is no way anything is going to get to the sensor. It's like installing a picket fence to stop anyone that gets past your razorwire electric fence. Removing this will improve airflow, but will the change in the flow characteristics affect the sensor readings adversely?

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Old 11-29-2000, 02:00 PM   #2
glenstiles
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Member#: 2827
Join Date: Nov 2000
Location: Woodland, CA
Vehicle:
2002 WRX wagon
Silver, baby, silver

Post

How do I get to the airflow sensor? Is this the one next to the airbox? I have a paper filter, but last time I checked didn't notice any buildup of grime or whatever.

Glen
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Old 11-29-2000, 02:52 PM   #3
CRZ_MSL
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Member#: 1610
Join Date: Jun 2000
Post

If you look in the tubing after your filter box you will see a wire mesh. Hiding behind the mesh you will see the airflow sensor. Mine has a thin layer of dust on it. Tonight I am going to clean it off with cotton swabs and rubbing alcohol.
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Old 11-29-2000, 04:35 PM   #4
immortal_suby
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Member#: 1711
Join Date: Jun 2000
Chapter/Region: South East
Location: Greenville, SC
Vehicle:
140 rogue points!
2013 GBS BRZ Limited 6MT

Post

I too am running a K&N for at least 22,000 miles. I also tore out the wire mesh screen about 10,000 miles ago. There is no buildup on my MAF yet. Be very careful when you clean it, that is an expensive piece of wire.
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Old 11-29-2000, 04:59 PM   #5
CRZ_MSL
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Member#: 1610
Join Date: Jun 2000
Post

Your K&N has been on for 22,000 miles? Get back to me in about 110,000 miles.

150K miles and counting. Provided no misfortune befalls my car, 250K should be easy.
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