I was fired back in 2002 for medical reasons. Honda of Canada mfg. Wsib denied the claim. No severence was paid.

Given the significant amount of time that has passed since your termination, your circumstances will have to be fully-assessed by an employment lawyer. An employment lawyer will require further information from you to determine the commencement of the applicable limitation period(s). The applicable limitation period(s) may be determinative as to whether any recourse is still available.