Hello, I performed an injector test on the 8v GTI im restoring, and the results were rather disappointing. Initially I had a problem with the fuel pump, which I replaced and managed to bring fuel to k-jet. I put the injectors in bottles and gave power to the fuel pump. Upon starting the pump, the 3 and 4 injectors started spraying without lifting the metering head while the 1 and 2 barely dripped any fuel. Lifting the metering head had no effect at all and only after i switched off the pump the flow slowly faded away on 3 and 4 injectors. The car has been sitting for years and it had worked perfectly before that. I replaced the fuel lines prior to that test. Any k-jetronic experts able to tell me what could be the main suspects? Or the best thing i could do in my situation?