okay so i am putting on a ls4 throttle body. when i snap the throttle i get a code p1516. if i gradually accelerate i get a p2101 at about 4500 rpms. both put the vehicle in reduced engine power. I have tried to change damn near everything through hpt's but it is still not helping. idle air flot etc scalar and everything. Anyone have any suggestions?

never mind. i am getting a little ahead of myself. forgot to open the blower housing up more. ll good now its off to dyno tune at zzp.

 

What you mean open the blower housing ?

 

port the supercharger so the tb can open all the way...the "housing"gets in the way...Instead of doing that I used a spacer plate

 

oh ok i see what you mean now yes i did the same aswell ! But also had a spacer for the meth .