I'm done with this bs I've read everything on line with no luck. My story, I've got a 1990 volvo 740gl wagon with the regina system. So I went on a road trip and came to a stop light after about 2 hours or driving and my car dies. So of course I think fuel pump I can't hear it. So I get the car home change the pump, filter, and strainer. Still no start so I get all new relays the two under the hood and the one in the fuse box still no start even with either. So I get a cpu. Car now starts on either alone. So I'm like fpr right so I get 3 fprs from a friend still won't run starts than dies like no fuel. I pull the regulator and key the ignition gas flows out till the relay clicks than I reinstall the fpr with the return off and no fuel is passing the regulator. The vacuum line is good now I can keep it alive with either but than it will die out. So of course it's a fuel issue but what!!!!!!!!!I also checked the timing belt it's still intact. Again it runs perfect with either no problems what so ever.

If you haven't visited it already, the 700/900FAQs on this site are a good resource for troubleshooting. For fuel issues:

https://www.brickboard.com/FAQ/700-900/FuelSystem.htm

"...I reinstall the fpr with the return off and no fuel is passing the regulator..."

So it sounds like the pump is providing fuel flow but not at the proper pressure. It needs to push fuel at at least around 50-55 psi, as the regulator will cut it down to 43.5 with no vacuum applied and 36.5 at idle and vacuum connected. A fuel pressure gauge is a handy item to have in your tool arsenal these days.

If you suspect a bum relay you can either a.)check for voltage back at the pink pump power wire with a volt meter while cranking the starter, b.run a hot lead straight from the + battery terminal to the pink wire, or c.)pull the pump relay and jump two of its sockets (I think pins 3 and 5 but I don't recall for sure). Maybe someone else knows. Also, the 700/900 cars are known for frying the connections in the relay board.

I'm wondering if you accidentally got a low pressure tank pump that the two-pump Bosch systems use vs the single high-pressure pump for Regina systems.
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Some people just absolutelt can't spell the colors worth a darn For others it's just a grey area.

Oh my god your so right I just checked what they sold me this is it http://m.autozone.com/autozone-mobile/en/parts/1990-Volvo-740GL/Fuel-Pump/_/N-ih14lZ1tlyxa?id=177669 and the one right above it is this one http://m.autozone.com/autozone-mobile/en/parts/1990-Volvo-740GL/Fuel-Pump/_/N-ih14lZ1tlyxa?id=386060

Either link took me to a page with a bunch of pumps but I believe you. Gotta watch them guys! One thing I've learned - one of the FEW things - make sure you know what you need before you go in there. To their credit, they have to deal with a BUNCH of different makes and not many of them are Volvos. You know more about your car than they do. Where are you having it fixed? I bet you'll be calling them in the morning with a bit more info.

I had it picked up today and dropped off at the shop. I got the pump from auto zone so it's quite possible they gave me the low pressure pump but it's an intex in tank pump I think.