Looks like O2 wiring reversed maybe?

 

Not the o2 sensor plug order. I did the swap with the car running, one unplugged it really started stumbling. Switched them and the stumbling stopped but the sporadic misfire, rough idle continues.

The guys at the shop checked everything from coils to wire harness, fuel pressure, injectors and vacuum leaks. All sensors, map, and lastly TPS changed. I'm stuck now as the Lotus shop couldn't find the culprit.

Aside from new camshaft, lifters, and supercharger, the only thing else they added was the BOE catch can, Ehuast and clam hinge.

 

You can see where they capped off around the TB with the supplied green caps from BOE and a black cap at the valve cover. I haven't seen any other photos of the BOE catch can installed. If anyone here has one, feel free to chime in.

 

Looks like you've had this issue before?

https://www.lotustalk.com/threads/katana-supercharger-low-boost-pressure.545585/

 

It's not the same problem. A previous owner installed the supercharger and dinged up and chipped the surface of the Greddy intake where it bolts to the blower, which was what caused the leak. Also, the line from the bypass valve was disconnected and was only picking up boost signal to the guage from the valve only and not the manifold. This also prevented the bypass valve from operating.

The blower rollers were worn with chunks of Teflon coating missing and nearly every hose was routed incorrectly.

I have a completely new setup now, but even a Lotus shop such as the one who had my car for 8 months apparently isn't 100%.

So it appears I'm chasing not only a boost issue, but an idle, missfire issue as well as the 2 codes I pulled in this post. I thought when they put the new tps on right in front of me that it fixed the problem as the idle "seemed" to smooth out, so after an extra month of the guys chasing the missfire, I decided to take the car home.

$12k worth of parts and labor and here we are..

 

Here is the boost issue. Watch the boost go down as RPMs climb.

 

Wouldn't losing vacuum cause this since vacuum is what opens the bypass?

 

My last supercharger had the bypass valve disconnected from the intake manifold. It senses manifold pressure for the valve to operate. At negative boost pressure, the valve operates. Its default position without vacuum is full boost. Period. You do not lose boost pressure with a bypass valve unhooked or in its default position. Ever.

The only time you "can" is if it get jammed or stuck in it's bypass position.

You can bypass a bypass valve and still get all the power.