code 43; s13 sr20 in s14

[jt$240]

So I'm finishing a sr20 swap in a 1998 s14. The ecu is throwing a code 43...which is the tps. The engine isn't running very well at idle, it starts up and revs to 2 or 3 grand then it settles off just under 1000 rpm. It holds under 1000 rpm for a bit then slowly stalls out within 10 seconds. The engine ran fine just before I pulled it out a of 90 240sx. I also tried switching the tps out of a running sr20 and still no dice. Has anyone had this sort of problem before?

FYI, new manifold installed. I'm leaning towards a vacuum leak somewhere, I haven't been able to pin point a leak yet. However I don't think a vacuum leak would cause it to run this shitty. Any help would be greatly appreciated.

[jt$240]

Update, I installed my stock intake manifold and the car runs like a champ. So in the next couple weeks I'm going to reinstall the new greddy manifold and hope it doesn't through the code again. TPS is fine.......wtf. So if anyone has installed a greddy intake manifold and ran into a similar problem please discuss

[UNISA JECS]

If you adjusted the TPS in anyway during this time or removed it, you have to unplug the TPS while the car is running and wait atleast 20-30 seconds then plug the TPS back in, this recalibrates the TPS signal.