So I have a 95 integra ls/vtec with the gsr head. Recently it has had a small lag right before vtec then it sputters for about 200-500 RPMs before it picks up. It is almost like a bog when it hits vtec. I have checked the ECU thoroughly and tried swapping out the distributor but still no change. If anyone has had this problem i would really appreciate the input.

 

Timing good? Sounds like its retarded a couple teeth

 

Checked it. Timing is dead on.

 

I am running a p28 chipped ecu with dc headers and a stock exhaust with stock CAT. Is it possible that the lack of air flow is a cause. I can hear the vtec kick but once it does it will lag for a moment then be good. The higher the gear, the longer the lag.

 

CELs?

 

No. No codes come up