Hello guys and galls, a buddy of mine is having trouble with his 00 si that he just put a motor in. He states that vtec kicks in at 5200 rpm but not 2500 rpm. He also states that it feels "sluggish"between 1500-3000 rpm, says its because vtec is not kicking in at 2500 rpm. Is it supposed to kick in at 2500 & 5200 rpm, or not? If so, what are some things we can check to fix the issue? Thanks!

 

https://www.google.com/url?sa=t&rct=...26130881,d.cGc

 

No, VTEC only engages at 5400 rpm on the B16A2... not at 2500. The likely cause of the sluggishness between 1500 and 3000 is a faulty IACV or plugged air pathway leading to it.

 

Ahh ok. He thought vtec also engaged at 2500 rpm. I thought the only way for that to be possible is some kind of chip or tune. I will have to check and see what i can come up with. Thanks!