that's only affecting the passenger side? Where too look? I replaced the hose from back of manifold all the way to brake booster

 

I think glc is on to something. Try using an unlit blow torch and see if the engine changes idle.

 

the problem is everything is so erratic I tried with starter fluid and nothing noticeable happened. And like I said the issue is only on the driver side so wouldn't it be maybe the driver side manifold gasket which doesn't do anythin when I spray it or maybe the phaser is stuck idk I'm losing my mind over the truck I replaced another hose that goes to the evap sensor on the firewall by the brake booster to the manifold because the old one was collapsing and that managed to bring bank 2 stft back up down to 0 at idle from when it was at between 25% and 40%but rcam 1 is still at 14 at idle while rcam2 is at 0.3

 

If you hear a hiss, brakes get stiff, the front hubs engage, and it stalls, that's a major vacuum leak. Nothing else will cause that.

 

so basically I need a new manifold I wonder if it could be leaking from the vacuum manifold on the passenger side of the intake