I have an 89 Trans Am, 5.0 HO. Failed emmissions test, I think HO was high and was told dianostics test threw out a 32 and 36. From what I read on the forum, it could be EGR valve and burn off sensor. Any input from anyone who had same problems or other possible problems associated with the codes....ie vaccumm lines or anything else I should check before I bring in for repair.