740 has 2 fuel filters as far as I remember.
First of all you have to check if the fuel pump is running. You can bridge the fuel pump relay and also the starter relay as Shayne has shown it here. Check in the online wiring diagrams if that is the same in your car! Wiring diagrams link is inside this link, print that out for the built year of your car, usually all fuses and relays are dhown from page 14-26 (about. Then also check all fuses under rear seat. How to remove the electric rear seats in an iL, see over there to the right side>>>> under E38.org/e32/
DavidC has made a nice write up on this with pics.

click

Then check the crank position sensor. Details you find here
http://pdftown.com/BMW-E32-Service-Manual.html
http://www.bmwtechinfo.com/repair/main/Index_cd3.htm

E32 750iL 11/88, E32 750iL Highline 03/90
7 series Tech tips
http://tinyurl.com/3486c

• Need Help! No start on engine! - johnlee 2008-05-03 00:31:27 (76 views)
  • Re: Need Help! No start on engine! - johnlee 2008-05-03 00:47:45 (63 views)
    • what engine, model year, details..... - shogun 2008-05-03 01:03:24 (46 views)
      • Re: what engine, model year, details..... - johnlee 2008-05-03 01:27:59 (55 views)
        • 740iL 1992 (url) - shogun 2008-05-03 01:47:45 (86 views)
          • Ok, I pulled the fuel pump out today to teset with 9v battery - johnlee 2008-05-04 00:36:13 (68 views)
            • Looks like you fuel pump is too weak (url) - shogun 2008-05-04 11:26:08 (53 views)
              • OK..I bought a new pump today and got it installed..but still..no start from the - johnlee 2008-05-04 20:56:50 (55 views)
                • the fuel filters have an arrow for the flow direction - shogun 2008-05-05 04:17:40 (47 views)
                  • I did the DME reset..still no luck with engine to turn over..let me replace the - johnlee 2008-05-05 19:09:20 (41 views)
                    • Condition UPDATED! - johnlee 2008-05-05 23:00:42 (46 views)
                • I am actually in the position like this post!.. - johnlee 2008-05-04 23:26:02 (45 views)
          • Re: 740iL 1992 - johnlee 2008-05-03 02:00:08 (46 views)
            • Re: 740iL 1992 - apane 2008-05-05 15:25:46 (49 views)
              • let me replace the crank sensor to see if it turn over..thanks (nt) - johnlee 2008-05-05 19:07:55 (45 views)
                • Re: let me replace the crank sensor to see if it turn over..thanks - apane 2008-05-05 20:38:17 (40 views)
                  • UPDATED! - johnlee 2008-05-06 01:01:13 (40 views)
                    • fuel pump relay bridging (anti theft device on?) - shogun 2008-05-06 11:26:08 (58 views)
                      • and is the OBC working? (url) - shogun 2008-05-06 11:28:41 (51 views)
                        • Re: and is the OBC working? - apane 2008-05-06 12:38:57 (43 views)
                          • Re: and is the OBC working? - apane 2008-05-06 12:45:12 (36 views)
                            • I will take a look at the fuse for anti theft device..my car got a stock alarm.. - johnlee 2008-05-06 19:25:59 (42 views)
                              • Any good place to purchase the Crank Position Sensor beside the dealer? - johnlee 2008-05-06 23:19:37 (35 views)
                                • E38 CPS does not work (url) - shogun 2008-05-07 19:29:07 (40 views)
                                • Re: Any good place to purchase the Crank Position Sensor beside the dealer? - apane 2008-05-07 11:03:00 (33 views)
                                  • Apane: I found your old post from last year..I think my car got the same problem - johnlee 2008-05-07 19:49:50 (35 views)
                                    • http://www.bimmerboard.com/forums/posts/363861 (nt) - johnlee 2008-05-07 19:50:07 (31 views)
                              • OK..I checked the Anit Theft Device fule (blue '15)..it's good..but I got a hard - johnlee 2008-05-06 20:03:37 (42 views)
                                • CPS testing (url) - shogun 2008-05-07 01:18:36 (76 views)
                                  • thanks Shogun! I just ordered a new CPS..I will update the condition as soon as - johnlee 2008-05-07 20:06:37 (32 views)
                                    • UPDATE! - johnlee 2008-05-14 22:40:08 (43 views)
                                      • Re: UPDATE! - apane 2008-05-19 13:19:19 (25 views)
                                        • still having the problem! - johnlee 2008-06-11 19:38:07 (20 views)