Sr20det lean idle

Manifold gets hot fast, car buggs when i try to rev it. Sparkplug 1,2 and 3 is good. Sparkplug cyl 4 is wet of fuel. Timing is good, no leaks and fuel pressure is good. Tps also good. No faultcodes on the standalone. When I turn of leancut on the ecu it acts alot better. Have gone over everything and havent found anything thats not good Starting to think that the injector on cyl 4 is fuckt. Any ideas?
 
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