Hi I’m a new member and just brought myself a Legnum Vr4 which has been sat in a garage for number off years I’ve cleaned all the old fuel out and put new plugs in got it running but is running very rich with black smoke coming out exhaust and keeps sooting up the plugs I’ve took the injectors out and cleaned them plus changed the fuel pressure regulator which it did run ok for about 10-20 minutes then started running rich again it has a autronic sm4 ecu fitted which I’m not familiar with but the previous owner said he was a member on here and that I could find all the information about the vehicle on here the reg is V827 EOU if anyone could help me with this would be much appreciated