in the fuel tank? just a wild guess.
How do you replace a fuel pump for a 1998 Chrysler Sebring Lxi Coupe ?
There is a low pressure fuel pump in the gas tank, and a high pressure in-line fuel pump located on the under-carriage beneath the drivers seat
To power up the fuel pump one may jump a popsitive to the middle pin on the right. Your question is a bit unclear but I just had the experiece and this might help.
There are several things that can cause your 1990 Volvo 740 to stall while driving. The most common cause is a bad fuel pump.
Almost all fuel injected vehicles have a fule pump in the fuel tank. Some vehicles may have an auxillary external fuel pump ( Example: Volvo 740). The Fuel pump on a 1994 Chevy S10 is located in the fuel tank.
clogged fuel filter causing back pressure on the pump making it draw too much amperage.
My sources say it is in a "basket" (fixed with three bolts) on the left side under the car, next to the fuel pump.
Goto Brickboard.com
.040
Hey I had the same problem with my Volvo 740 GL and it turned out to be the fuel filter. Have the fuel filter replaced and that should solve the problem, if not than it is probably something more serious like your fuel pump. If it's not the fuel system check the spark plugs. I hope this is helpful.
not a switch but it does have one if you over boost at about 12-14 psi.
http://www.brickboard.com/FAQ/700-900/ElectricalCircuitsRelays.htm#RelayLocations