Iam new to this so please bear with me. I just got a 90 mustang LX, its had some mods. Its got a GT-40 crate motor, speed pro pistons, (I dont know what kind) B303 cams, Cobra EFI manifold and cold air intake.I did not do any of the mods myself it came that way. The problem is when I ran the codes they were all emision codes. So trying to fix them I found that the EGR valve vacuum line was diconnected, the CANP solenoid is gone and I think the plug is just hangin up by the fuel rail and it seems to be a little rich the exhgust fumes burn the eyes. So if there is anyone out there that can tell me if that canp solenoid missing is causing the running rich and how to fix please.