87 560sl OVP relay
 

Sorry for the tardy response, crunch time for my business. Thanks to Rowdie I was able to make the repair. He was exactly right; high idle and SRS light on means bad OVP relay. It's kind of in a hard spot to reach but not difficult. As regards vac line; I had tried to post photos but can't get them to open in windows 8. I'll get one of the kids to do it. I plugged the line and notice no difference. I'll report any thing I find. Thanks again for the help.:)