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fuel pressure

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When i remove fuel pump regulator should there be fuel in it and if not how do i know if regulator is bad
I'm assuming you're talking about the fuel pressure regulator. If the regulator is not leaking, the only test for it's functionality is a fuel pressure test. That takes some special equipment. If the car is backfiring out of the intake,...
Car is taking longer than usual to start
Hello. If this problem occurs more consistently with the "first startup of the day" or after the car has been sitting some time, the problem may be low residual fuel pressure. A check valve in the fuel system should maintain...
I have a trouble code that states my fuel pressure rail sensor is inappropriately high.
Hello there, a few common faults will cause your 2010 Volkswagen CC to have a high fuel pressure code. There are two paths for this, either your car has high fuel pressure, or the car is reading the fuel pressure...
It takes two or three tries to start the car.
Hi, thanks for writing in. I recommend testing the fuel pressure and monitoring the pressure after the key is turned off to see if the pressure drops to zero. If it does, then the system will need to be tested...
I have a new fuel pump and there is no fuel to the engine
Hello and thank you for contacting YourMechanic. A plugged-up fuel filter will cause an engine not not start. Get a fuel pressure tester and hook it up to the fuel rail. There should be a shrader valve on the fuel...
What can happen without using my fuel rail pressure sensor?
The fuel rail pressure sensor is used by the computer to regulate the fuel pressure by regulating the voltage to the fuel pump to slow it down or speed it up. If the pressure switch is bad then the computer...
Why do I have to pump the gas to get my jeep started?
This may be related to many things. Your vehicle may need a timing adjustment, or you could potentially have low fuel pressure. At this point, your Check Engine Light should be illuminated on your dash. When this comes on, there...
fuel pressure and map hose
Hello. The first thing that should be done is to retrieve codes. This is an OBD I system, so it is more difficult than the newer OBD II systems. Lacking any codes or scan tool data, I will have to...
I can't get the car to turn over
To start, computers, aka PCM (powertrain control modules) rarely fail. They are complex units that require many different inputs to initiate the desired response. Having replaced your PCM already, you may have already traded in your old PCM as a...
Truck won't start
Hi, thanks for writing in. If the truck is getting the correct fuel pressure to the fuel rail, but does not deliver fuel to the spark plugs, this may suggest a fuel injector problem. I would start with checking the...
fuel volume regulstorcontrol circuit /open
Hi there. The fuel pressure volume regulator control circuit/open requires circuit test be performed. A scanner would help for monitoring the parameter. The fuel pump could be at fault, with little or no fuel pressure, the PCM (powertrain control module)...
If a fuel filter is plugging up can that restrict the fuel pressure in a fuel injected car
Hey there. Since the fuel filter is an in line filter that the fuel must flow through in order to get to the injectors, this can have an impact on fuel pressure. Depending on how plugged the fuel filter is,...
Fuel rail sensor faulty or fuel pressure too high
Hello there, a check engine light for too high of fuel pressure is unusual with your 2009 Audi Q5. There are one 2 possible faults going on. Either the fuel pressure is too high, or the fuel pressure sensor is...
Trying to locate the fuel pressure regulator??
The fuel pressure regulator is almost always located on the fuel rail. The fuel rail is located on the top of the engine and has the fuel injectors under it. This will be located right around where the intake manifold...
Car won't start - 2013 Dodge Charger
Hi there. Fuel pressure would be a good thing to check out as lack of fuel pressure would indicate a failed fuel pump. Other things that may cause the vehicle to stall are a camshaft or crankshaft position sensor and...
Possible fuel pump problems?
Assuming you have the stock equipment still in your truck, it should have come with throttle body fuel injection and not a carburetor. If this is the case, you likely have a low fuel pressure issue that is preventing the...
I know this can be a little frustrating when you do so much work and nothing happens. Starting fluid isn't going to be good if it doesn't run afterwards. You may want to inspect your timing belt. I often turn...
If the fuel pressure regulator needs to be replaced can you use one from any vehicle
Hello there, the fuel pressure regulator on your 2000 Mazda Protege is a critical part in the fuel system. The fuel pressure regulator manages the fuel pressure at the fuel rail and ensures the proper constant pressure. You will not...
Truck is not getting fuel until holding the ignition in for a few seconds.
You may very well be on the right track with this and you should check the control module to be sure. You may also want to check the fuel pressure regulator as well to be sure you are getting enough...
Fuel filter loses its prime and the Check Engine Light is on - code P0907
It sounds like you may have an issue with your fuel pressure regulator. If the fuel pressure regulator is malfunctioning, this can cause a loss of fuel pressure. If fuel pressure is lost or drops below the manufacturer's specifications, the...

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