S14 ka will not stay on

[ORL240]

My s14 with ka, no egr, s13 cams, electric fans, new oil pump, new ngk plugs, rebuilt ka in 05/08. The issue is the engine will start up pretty easy but when the engine warms up and starts to drop to idle, the engine stalls and shuts off.If I start it and keep rpm's above 3000 the car stays on. I have replaced fuel pump, tps, tested maf. I think it may be dumping too much fuel when it goes down to idle and ends up stalling. Still have to look for vacuum leaks but I dont think its related to vacuums.Is this timing related? I think I installed my new tps correctly but Im not totally sure. Car does feel like it starting up normally. Last time i checked engine codes i got a 55. Any ideas would be very welcome. I really need to get back on the road.Thanks