I just boosted my single cam the cheap way with a fmu and missing link. but for some reason it bogs out at 4500 rpm when vtec is supposed to crack and it never engages, but if I downshift into vtec it works.. anybody have any ideas?

 

Forgot to mention it doesnt let me go past 4500 rpm either..

 

no cel codes?

 

GET IT TUNED!

starting off from lower RPM its probably overloading with fuel and bogging the crap ot of the motor.

 

let me guess you just slapped it on thinking everything was going to work? It could be many different things. The best answer is GET IT TUNED

 

If you only knew the irony behind your user name OP.