Volvo Repair: 1994 Volvo 940 Turbo Sedan, 1994 volvo 940, fuel pump relay

Question
My 1994 Volvo 940 Turbo with 145,000 miles began stopping for no apparent reason. I would be driving along at low speeds and it will just quit. All dash lights come on. It will restart and not do it again for a week or two. The check engine comes on sometimes with code 411. I have had a tuneup with new parts and fuel filter replaced. My mechanic said he did not think it was the fuel pump. Hope this is enough info. I have some mechanical skills and a "mechanic". Thanks, Jim

Answer
James...
         Your problem has many possible reasons.
          Failing electrical connections...fuel pump relay...fuse box with bad fuses...bad gas...wiring coming from pos. battery has bad connection..computer connector or component failure...others.
          Wish I could be more helpful.
                      Good luck,
                            Bilbo