I have a very baffling issue with my 1992 Volvo 940 GL (234). The mileage is 168658. I’ll try to make this as concise as possible. My wife made a left turn. When she switched from brake to gas, the car died. Previously, no problems existed with the 940. I tested the car by shooting ether into the throttle body. The car started, then quickly died. I deduced that this was a fuel problem. The 940 has a new fuel pump (Rex/Regina, single pump in tank) and new fuel filter. The system was tested with a new fuel pressure regulator and a new fuel pump relay. No change occurred. It also has a new oil pressure switch. No change occurred. I have checked all fuel lines by using compressed air. No blockage exists. No pressure exists in the fuel lines. Fuel lines were tested along the fuel rail. Pressure read 0 psi. When in ON position, all electrical aspects of car appear activated. The alternator tested well and the battery is new. I have exhausted all troubleshooting procedures from Volvo technicians and some of the online community. Now, the 20,000 dollar question: What in the Hades is wrong with my car? All help is wanted and appreciated. Thank you in advance.