can u tell me wot would cause the engine to run rough and lose power in all gears below 2500rpm i have recently fitted a k&n cone filter could this be causin it. there is a pipe that went from the original air box to top of the inlet manifold can u tell me wot this is for and if this could b causin the problem as i have removed the original air box and its not attached to anything

Tracy, April 2007

This may well be an air filter problem. yet i have found more often than not this problem is caused by the 'Air Flow Meter'
check it out

Apprentice Mechanic (anonymous), April 2007

Switch back to your original filter & see what happens. Performance filters can cause running probs.

George., April 2007