Forum Discussion
opnspaces
Dec 16, 2013Navigator II
I'm not reading a bunch of internet myth in this thread. But I am reading from people who say they are the actual people who installed a K & N and had dirt and fouling sensor problems. I've got my own experience too.
I had a VW dune buggy with dual carburetors. I put some nice shiny new factory oiled K & N filters on it. These filters were held down with two bolts each and they were carefully seated and the bolts were tight, but not over tight. I have enough experience with the desert sand to know that it will get anywhere that is not well sealed so I was very careful with installation.
After about 3/4 of a day of driving dusty roads it started running poorly. I pulled the air cleaner covers and there was a fine coating of sand inside the filters. This was not the fine dusty baby powder sand, but actual gritty particles.
I did continue to run the filters because I was young and dumb.
Okay, well now I'm older and still apparently dumb because while the buggy is long gone, I still run a K & N on my fuel injection conversion early Bronco. Really this is because I haven't had the time to go looking for a cone paper filter to replace it with.
Want more actual truth not internet myth? Before I started working on computers I was a dealership mechanic here in sunny Southern California. This is true, I'm not making it up. Kids would bring in a poorly running truck. Many of the trucks equipped with a K & N had a fouled mass airflow sensor.
This sensor sits just behind the filter and is a wire that is heated and the computer figures out how much air is flowing into the engine by how much current it takes to keep the wire hot as the airflow cools it. We could shut the truck off, let the sensor cool and blast the burned on K & N oil off the sensor wire with brake cleaner. This would fix about 85-90 percent of the mass airflow failures when a K & N was involved.
To those mechanics that state the K&N doesn't foul sensors, your young drivers must be better at oiling their filters than the so cal kids, because ours are fouling sensors.
Believe what you want about the K & N, but I know for a fact that they don't filter well because I have seen it first hand.
I had a VW dune buggy with dual carburetors. I put some nice shiny new factory oiled K & N filters on it. These filters were held down with two bolts each and they were carefully seated and the bolts were tight, but not over tight. I have enough experience with the desert sand to know that it will get anywhere that is not well sealed so I was very careful with installation.
After about 3/4 of a day of driving dusty roads it started running poorly. I pulled the air cleaner covers and there was a fine coating of sand inside the filters. This was not the fine dusty baby powder sand, but actual gritty particles.
I did continue to run the filters because I was young and dumb.
Okay, well now I'm older and still apparently dumb because while the buggy is long gone, I still run a K & N on my fuel injection conversion early Bronco. Really this is because I haven't had the time to go looking for a cone paper filter to replace it with.
Want more actual truth not internet myth? Before I started working on computers I was a dealership mechanic here in sunny Southern California. This is true, I'm not making it up. Kids would bring in a poorly running truck. Many of the trucks equipped with a K & N had a fouled mass airflow sensor.
This sensor sits just behind the filter and is a wire that is heated and the computer figures out how much air is flowing into the engine by how much current it takes to keep the wire hot as the airflow cools it. We could shut the truck off, let the sensor cool and blast the burned on K & N oil off the sensor wire with brake cleaner. This would fix about 85-90 percent of the mass airflow failures when a K & N was involved.
To those mechanics that state the K&N doesn't foul sensors, your young drivers must be better at oiling their filters than the so cal kids, because ours are fouling sensors.
Believe what you want about the K & N, but I know for a fact that they don't filter well because I have seen it first hand.
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