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1. #FUEL PRESSURE SHUT IOFF 2004 BUICK CENTURY HOW TO#
2. #FUEL PRESSURE SHUT IOFF 2004 BUICK CENTURY CODE#

Say hello to the fuel pressure regulator. Once there, it’s injected into the combustion chamber and ignited. It then gets passed through a filter before continuing on in the fuel line toward the injectors. The moment you turn your key in the ignition, the fuel pump draws out a specific amount of fuel from the gas tank. Now that you understand what a pressure regulator is – let’s look at how it works. The fuel pressure regulator is in charge of how much fuel there is and how much pressure it has when going through the injectors. When this balance leans one way or another, it’s referred to as running rich (too much fuel) or lean (too much air). As an example, cruising at 45 mph requires less fuel than hard-accelerating from 45-60.įor proper ignition inside the combustion chamber, there has to be a precise mix of air and fuel. The amount of fuel an engine needs depends mostly on what is being asked of it by the driver. Not only that, but it also does so for the amount of fuel sent to the injectors (on vehicles with direct injection). That’s right, it regulates fuel pressure.

#FUEL PRESSURE SHUT IOFF 2004 BUICK CENTURY HOW TO#

See our detailed guide on how to respond when a dashboard warning light turns on.One great thing about the fuel pressure regulator is that its purpose is nicely described in its name. From there, we can provide an accurate cost estimate for the repair. We’ll be able to retrieve the code(s) and perform pinpoint testing to zero in on the actual culprit. If that all checks out and the light doesn’t turn off within the next several miles, you’ll want to schedule an appointment with Auto Lab for further testing. Check to make sure the gas cap is tight and that there’s no rust or debris preventing it from sealing. If it is the engine light, see if the gas cap is to blame. If you’re not sure, consult your owner’s manual. The first thing we advise is confirming that it is the ‘Service Engine’ or ‘Check Engine’ light. When your Service Engine Soon light turns on, you won’t know whether it’s because of a P0087 or a completely different issue. What To Do When Your ‘Check Engine’ Light Comes On

#FUEL PRESSURE SHUT IOFF 2004 BUICK CENTURY CODE#

Symptoms of a P0087 diagnostic trouble code may include a misfire because of a lean fuel condition, and the vehicle might run rough or lack power on acceleration. When your vehicle’s Engine Control M (ECM) records a code of P0087, it means the fuel pressure in the system is below specification. There is a sensor on the fuel rail that monitors fuel pressure and determines if the vehicle needs more or less fuel. This means the fuel pump can vary its speed to deliver fuel as needed, rather than running constantly at a steady speed. Some vehicles are equipped with a returnless fuel supply. Here’s another example of a problem that can trigger the light… Trouble Code: P0087 Fuel Rail/System Pressure – Too Low The light is part of your vehicle’s on-board diagnostics (OBD) system and can indicate anything from a loose gas cap to a major repair like a catalytic converter.

Your car’s “Check Engine” or “Service Engine Soon” light can flash on for more than 1,400 different reasons.