Hey whats up guys? I was wondering if any of you could help me with my problem. I have some SERIOUS lag in my car. It happens from 0 - 5500rpm and then VTEC kicks in and she flies. I have no clue what it could be. I've checked all my vacuum lines, IAB, vacuum tank, MAP sensor and spark plugs. The only thing now is to try the O2 sensor and a compression check. Has anyone ever experienced this before?? Any help would be greatly appreciated. If you'd like, IM me at Sirex or AccoLude4Chris on AIM. Thanks for the help guys..