Idle Issue, Greddy Inlet Manifold And Q45 Tb

[.75 degrees sideways]

I'm running a s2 rb25det, JJR greddy copy inlet manifold, q45 tb, I have q45 and z32 tps (which are supposibally the same but I tried both) and a power fc running the show.

The problem: when cranking it will start then die. Give it a tiny amount of throttle and it will start and act like a vaccuum leak and want to die. Give it a little more throttle and back off it will increase rpm quickly even when the throttle body is fully closed

What i'm thinking:

Vacuum leak in either the AAC gasket, inlet manifold possibally not true and needing to be faced, inlet manifold gasket got damaged on installation.

TPS (however does the same thing with the z32 and q45 tps, also does the same thing when the tps is unplugged)

Throttle body

There is a few things that are effecting it that will be fixed tomorrow but it won't be the whole cause of the problem.

AAC valve vacuum nipples have been blocked using crap we had available at the time which probally won't be sealing 100% but close.

One of the vacuum nipples had been snapped, so it was crimped closed until I could get a new one. Wouldn't be sealing 100% either.

I'll emphasise how strange it is when you open the throttle body half way and close it, it will still increase rpm quickly. Every time it started revving more i'd shut the engine off. But I left it a bit longer on the last time and it increased rpm and then just shut off by itself.

If anyone has any advice, or if you have dealings with either a q45 tb or greddy copy inlet manifolds let me know. Post up pics etc

I need to get this sussed out so I can get RWC and register the damn thing