Smeffs

Hey guys, My engine light has come on and I've been trying to self diagnose the problem. However when I use the method of bridging the consult plug, the MIL light has remained as a constant light (doesn't flash). Therefore I haven't been able to diagnose the car. Has anyone else had this issue before and fixed it or is there an alternative? I'll take it down to the mechanic if I can't get a solution to this problem. Thanks and any help is much appreciated It's a 34 25gt also...