Mercury Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I am Mike, welcome. I'm reviewing your question.
If there are no codes and it did run for a little while, check that fuel pressure. If it's too high from link a kink in the fuel line, the high fuel pressure will cause flooding because the small amount of time the fuel injector is open, too much gasoline will flow through because of the extra pressure.
I was reading that old post.
That is close. You had better check that fuel pressure and clear that code, hopefully it was just because of a loose gas cap.
Have you had problems pumping gas into the tank? Anyhow, here is a troubleshooting procedure for that code P0452
And the fuel pressure should be 40 psi.
While not running, too. Did you ever clear the codes?
This should clear that P1000, http://www.obdii.com/drivecycleford.html
That P1397 might be because of the dead battery and the charging, jump start, etc.
Ok, are you going to check the fuel pressure? I see I asked that in your other post.
You should be using a hand held fuel system pressure tester. rent or borrow one if you don't want to purchase one.
Well, did you try to read it with the scan tool while the fuel pump was running, if not give that a try.
That is way too high, it should only be 40 psi. Check for a kink in a metal fuel line before where you installed that fuel pressure tester and if you cannot find any kinks, you may just have a faulty fuel pump but honestly I haven't ever heard of fuel pumps failing and putting out too much pressure but I suppose it's possible especially if something inside the fuel pump came loose or broken and is clogging the pump or the line, so that brings me to my next suggestion even before condemning the pump if there is no kink in the line, remove both ends and see if you can blow air through it to check if it's clogged. If so and if the air blows out the clog, fine put it back on and check the fuel pressure again, if you cannot blow air through the line, replace it.
the too high fuel pressure would also explain the when you said, "plugs are drenched with gas".
fuel injection rail pressure is controlled by the electronic fuel delivery module which is enabled by the powertrain control module (PCM).
The fuel rail pressure (FRP) sensor provides the PCM with the current fuel rail pressure. The PCM uses this information to vary the duty cycle output to the FPDM to compensate for varying loads.
The fuel pump (FP) module contains the fuel pump, the fuel pressure regulator, and the fuel sender assembly. The fuel pressure regulator is attached to the FP module and regulates the pressure of the fuel supplied to the fuel injectors. The fuel pressure regulator controls the pressure of the clean fuel as the fuel returns from the fuel filter. The fuel pressure regulator is a diaphragm-operated relief valve. Fuel pressure is established by a spring preload applied to the diaphragm. The FP module is located in the fuel tank.
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