K&N and computer resetting

[fixbone]

I have noticed a number of posts regarding disconnecting the battery to reset the computer for more aggressive driving and remapping for higher horsepower. I installed K & N airfilters today. The installation requires the battery disconnect. If this potentially "resets" the computer and assuming most people drive aggressively after the filter swap, how do I know that any power gains are from the filters and not just the computer reset? K & N claims 14 HP.

Also, I checked carefully for airleaks and everything is fine but under heavy throttle the engine stumbled twice. Is this normal? Is this part of the computer reset?

 

[Herc]

The instructions for just about every mod I have ever done
on a car always starts out with, "disconnect the battery".
I think this is a liability thing or just so you don't mess
up any electrical part. My install went fine, did have
to drill though, and the car ran ok after. As far as the
stumble goes, sounds like fuel, I would have it looked at
if it continues.

Herc

 

[Racer Robbie]

I am having the same problem, I have lost that neck snapping feel after using the K & N setup. I would love to know where the problem lies as mine is collecting dust on the shop floor.

 

[SRTRICKY]

I feel like putting my stock filters back on just to see if it feels different now...got me all worried

 

[Racer Robbie]

The problem is solved as far as the bad running of the engine. As discused before one need to remove the baffle and then remove the K & N filter assembly and clean any oil from inside the throttle body. Also remove and clean the two sensors with electric motor cleaner and air dry. I looked at mine and found that the two hose connections were much smaller than the stock, my unit was the lster design i was told, so I drilled them out to the same size as the stock unit. The stock air box does not come even close to fitting tight around the K & N plastic T assembly so I would suggest putting foam tape around it between the air filter box and the T connector, make sure you check mit with a flashlight as there is a ton of room between the two. Next one needs to remove the factory baffle from the ram air duct in the hood and again use foam tape to seal between the air box and the hood so no outside air enters except throuh the hood scoop. Be sure to disconnect the negitive battery post, 10 mm socket, and leave it off for a few minutes so that the computer is reset. This made a whole world of difference on my viper. MAKE SURE YOU HAVE YOUR KEYS IN YOUR POCKET BEFORE DISCONNECTING THE NEGITIVE BATTERY BECOUSE WHEN YOU REATTACH THE BATTERY CABLE THE WHOLE SYSTEM GOES INTO ANTI-THEIF MODE AND SHUTS DOWN. JUST OPEN THE DOOR WITH YOUR KEY, UNDER THE SIDE SCOOPS ON THE DRIVER DOOR IS A KEEY LOCK, AND GET IN AND START THE CAR AND LET IDLE FOR 10 MIN AND EVERYTHING WILL WORK AS IT DID BEFORE