1989 XJS V12 Jaguar

Well my jag seems to flood out. I put a brand new distribater cap, spark plugs, and plug wires. I get plenty of spak and gas to the cylinders. I all so did a compresion test on all 12 cylenders, the tested perfect. When I took the fuel rail off, I hooked the fuel lines and wires to the injectors back up and turned the engine over, and each injector sprayed fule and when I stoped turning the engine over they did not leak. Im getting 45 psi of fuel pressur in the fuel rail. After hooking every thing back up I unpluged my fuel pumps relay trying to get the motor to run in a lean condition, and it runs perfect till it uses what little gas in the fuel rail. When the engine was runing in the lean condition I quickly test one injecter wire and it was geting differant ome readings as it accelerated, and I tested my throttle position sensor, all check good. Im starting to think that my computer is bad? I dont know, if I could get some help it would be greatly apreciated.