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I have a 1998 Ford Mustang GT. The car will start and stay running for about 1-2 minutes, then it will quit running. I did a fuel pressure check and at initial start it is at 40 psi and after it starts it drops to 30 psi. after about 1-2 minutes, the fuel pressure starts plummeting down until it reaches 0 psi and shuts off. I have replaced the fuel pump, the cam shaft sensor, the crankshaft positioning sensor and the fuel filter!! Any ideas what can be causing this problem?
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check for a fuel flow problem( pump pressure-filter blockage-injector/s) run fault codes ( check for HO2S and O2S sensor operation.. Check cat converter is serviceable Blocking exhaust system
Injectors need cleaning, As being left for time its got dirty, Run a fuel system cleaner through the fuel, Or get an professional to clean injectors for you with a high pressure unit.
test the fuel pressure first. use a guage and watch it till engine dies. also the guage has a bleed off hose, run a small amount of gas into a cup and check for water
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