2007? common rail if a two litre then its the same engine as the X type jag and ford Mondeo .well the X type i done the other day i had a similar problem starting so used my old fuel pump that i use to empty cars with the wrong fuel and used this to pressurise the system ,once it was running i stopped the engine and reconnected the pipes and it is still running ,(i hope) well he hasnt rang back .
SOURCE: fuel pump.
Could you please confirm your model type? My fuel pump has seized and i called Ford to check if there was a recall on my modle (Yr 2000, LX) have been advised they're isn't but i'm not surprised! The first indication of this problem was the fuse blowing. It was pulling 18amps on a 15amp fuse although apparently this should normally only pull around 8amps. The AA replaced the fuse and off i went - for 2 days - it's gone again and a new fuse isn't helping now. AA engineer said that these can intermitantly seize before going completely. Have just been quoted £353.42 from Ford to replace.
SOURCE: ford focus fuel pressure
you are interferring with something you know nothing about,dont you have an annual vehicle inspection to check that vehicle conforms to whats on the paperwork,or are using this just for track .as a vehicle with this sort of modification with no cat on either is illegal to use on the road.the brakes cant cope with extra power the suspension ,the chassis in fact everything is not designed for this if you want a faster car buy a nice jag or a porsche evan consider ferrari or lamborgini
SOURCE: 99 Ford Explorer V6 no power
You mention no check engine light, and all the work you've done leave one solution; Your catalytic converter is clogged.
When you replace you catalytic converter your issues will cease. This is a very common problem, and a simple fix.
I hope this information helps and I wish you luck with your repair.
SOURCE: Im working on a 95 s10 blazer.It has the 4.3
GM used a spider injector design in the 4.3s with a central injector fueling the individual injectors. These are not the best set up and i'll bet thats what your problem is. Install a pressure gauge on the fuel rail and make sure the pressure doesnt die down
SOURCE: 2.9 Ford engine. Loss of fuel pressure and
Its possible that its the pressure regulator. But its more likely that its the fuel pump or even the fuel filter You say it olny starts to run bad when you give it more gas. If it were the pressure regulator then it wouldn't matter becaues what that dose is keep the fuel pressure constant under all driveing conditions. Although the problem could be to much fuel witch could mean the regulator is allowing to much fuel to enter the system. Pull some plugs out and see what they look like they should be a tan color if the engine is running good if there gas fooled wet and black then its is to much fuel if there kind of white then its running to lean and its not enough fuel and you should check the delivery system pump and all filters well good luck
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