Can not find the fuel pressure regulator on a 1999 2.2 liter Chevrolet cavalier

if the car is fuel injected, holding the gas pedal to the floor will actually cut off your fuel injectors - which may make it worse. You need to check fuel pressure, you want to make sure the fuel pump isn't bad. Also, check your battery.

Hope this is helpful :-)

-Scott

Have you checked fuel pressure yet ?

If you are refering to the oil pressure switch that was used in some of the older GM vehicles that shut the fuel pump off in the event of fuel pressure loss, the answer to your question is NO, a 1999 Chevrolet Cavalier is not equipped with one of these.

Sounds like you have a bad fuel pressure regulator.Take the vacuum hose off the regulator and look for fuel if there is fuel present replace regulator.But if you don't have in vacuum hose hook a fuel gauge up to fuel rail then start the engine look at reading on gauge now pull vacuum hose off and if pressure does'nt rise 5-10 psi replace pump.

You need to have the psi on the fuel rail tested prior to starting. You will probably fine that it isn't holding fuel. The most likely cause is the pressure regulator valve.

should be on the end of the fuel rail or under the plenum

Could be several different things.
In need of tune up such as plugs,wires.
Poor connections at coil packs or faulty coil packs.
Dirty fuel system,fuel filter or injectors,fuel pump (such as low pressure),fuel pressure regulator.
There are other things that can cause this but this is the first line of inspection.

the fuel pressure regulator is on the fuel injector rail. it is where the fuel line for input connects to

Try and remove the vacuum hose from the fuel pressure regulator and turn the key on if fuel comes out the regulator is leaking causing the engine to flood when it sits.

it sounds like the check valve in the fuel pump is letting the fuel bleed back into the tank