A little explanation on the "P0171" DTC.

http://www.obd-codes.com/trouble_cod...gen-sensor.php

Does anybody know when the oiless "AEM BRUTE FORCE INTAKE" for the SS/SC is coming out? If in fact the oil is getting the MAF sensor dirty and throwing a DTC then the AEM filter is probably the only one that we should be using.

 

I helped a friend with a custom intake a few days ago, and the position of the MAF sensor from the K&N really effected his car. I'm curious if that could be the problem here, and that it's not the oiled filters.

 

The k&n uses the same position as stock. But if the MAF is not tight enouf and there's a leak in the pipe then that would cause a DTC almost 100%. But according to the code description's It says:

CausesA code P0171 may mean that one or more of the following has happened:

The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters (K&N, etc.) can cause the MAF to become dirty if the filter is over-oiled
There could be a vacuum leak downstream of the MAF sensor

The AEM synthetic oiless filter sounds promissing, that's the one am waiting on to buy.