And like I said, trying to help the original poster, if you click on "Workshop Resources" in the left column, and follow the rest of my post, you can find the route to the posted service manuals. This will help the original poster with regard to his question on vacuum diagram.

Now, let's get your issue resolved here. You are confusing www.startekinfo.com and their EPC/WIS access with http://epc.startekinfo.com which is the free personal use EPC.

The www.startekinfo.com EPC/WIS site is intended for dealers and independent service shops.

The http://epc.startekinfo.com site is intended for DIYers and is, indeed, free with a no-charge credit/debit card registration.

Two different animals.

Cheers,
Gerry