help k&n at idle

[NjMpSpeed]

looking for some advice... i installed my k&n today but at idle my rpms will shoot down and up almost like its about to stall. it only does this when the fan is on and blowing on it. i also didnt install the air sensor into to the k&n could that be it too?

 

[KYREDP5]

Ya think? I'm sortry but that's kind of a dumb question. If you unhook something and your car doesn't run right then the problem should be easy to figure out.

Not to flame or anything but come on....

 

[t3ase]

Actually the K&N hurts performance on the car without a heat shield and it WILL cause RPM dropage even with the MAP (MAF?) sensor in there. Put the stock airbox back on, wait for a good CAI like K&N's Typhoon and then enjoy it.

While the sound increases, the performance takes a rather large hit. I'd remove it immediately and take (or send) it back for a refund.

 

[spoolboy]

yeah I had the cone filter on for a few months and i liked the sound, but I put the stock airbox back on a couple weeks ago, and it seems to run much better

 

[t3ase]

Gas milage suffered, too. Even after resetting the ECU too many times to count.