sr20det swap.....riding lean when boosting, riding rich when not

[ctvs12]

So i have a 89 240sx and did the sr swap after i blew my ka, got the swap pretty much complete except for the fact when i boost i run lean and when i dont i run rich....i thought it was the tps so me and a few friends worked on calibrating the tps we used a volt meter and it was read .35 found out i should be at .45 so we fixed it and it helped a bit but still running pretty rich, as we fixed that we realized i was only running on three cylinders and went and picked up at compression tester, the engine compression was fine so then we checked the spark plug to see if it was bad and it was fine but still no third cylinder. after all this my q45 ignitor chip was moving around and the engine was responding to it depending where it moved so i replaced it with a stock sr20 one and again a lil better but still no third cylinder and running to rich.......i started messing with the timing but am having no luck.....any ideas???

[Mangid]

How do you know you're only firing 3 cylinders? Is it misfiring?

Is the injector firing? Put the tip of a screwdriver on each injector, put the handle to your ear and listen to each one. It should be clicking.