There is a 75 service manual supplement here
http://www.books4cars.com/result1.ht...mageField.y=49
I have one and it contains on 6-10 of the engine section The EFI. I also have the workshop manual by Robert Bosh (14 pages, front and back) for the L-Jetronic, if that helps. It contains a very good troubleshooting chart. Since it seems so many are going into FI, I could try to scan it and upload it, and if that fails, I could copy it and send it out for the price of scaning and mailing. I have to go by the Post office today and will find out how much shipping would be. Jarrell