I should have posted directly to you, but replied to another comment lower down regarding the fuse jumpering.

I won't detail it again here, but depending on how the fuses were jumpered, the "no gas on cranking or with 4 and 6 jumped" might not necessarily be a pump problem.

Please read and consider my earlier post below, and reply to it if I can answer any questions.
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.

Your 4 to 6 jump tells you that it isn't the fuel system relay.

Check for spark-- if no spark, suspect the RPM sensor on the bell housing.

If you have spark, suspect the power stage on the inside of the driver's side fender.

Good luck!

That should force both pumps to run, if they are not running make sure the fuses are good and firmly in place. Otherwise try 12 volts directly to the main pump, if it does not make it run then the pump must be bad. Dan

I assume you have a late model 240, as the two fuses you jumped indicate. Since you jumped the fuses, you bypassed the fuel pump relay and that would indicate to me that your fuel pump has gone bad. Maybe someone else will chime in, but you have done the right test. On my older 240 ('84) the jumped fuses are 5 and 7, I believe.

Jay
84 245 GLTi 235k
88 740 GLE 218k