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Fuel pressure control valve: replacement and selection

When and why it is necessary to replace fuel pressure control valve

Lifetime limit of the fuel pressure control valve is not specified. Jamming, mechanical damage of the valve, spring loosening can be the reasons for part replacement. Moreover, the control valve should be replaced in case of cracking or tearing of the membrane.

Usage of poor-quality fuel commonly leads to clogging and, as a result, jamming of the pressure control valve. Mechanical defects of the part and its membrane cracking usually occur if the car was not in use for a long time. Moreover, a cause of component defect can be its incorrect installation.

A faulty fuel pressure regulator will light up a “Check Engine” indicator on the dashboard. Also, defects of the part will be indicated by noticeable engine power loss, worsening of acceleration dynamics. If the fuel pressure control valve is damaged the sound of operating engine will be intermittent, and the car can stall at idling.

You need to contact a service station in order to install a new component. Replacement of fuel system elements requires strict following of fire safety precautions. In addition, demounting of the control valve usually requires removal of the whole fuel rail. During replacement of the car part a new sealing ring may be installed, if needed.

How to select a fuel pressure control valve

These components are divided into two types: sportive – with manual adjustment and classic with vacuum adjustment. The advantage of the first type lies in the fact, that they are able to increase efficiency of fuel injectors.

If you want to make the control valve perform its functions during continuous time, give preference to products of reliable manufacturers. High-quality items are produced under such brands as Bosch, Meat&Doria, Pierburg, Magneti Marelli, Metzger and others.

The part should be selected in accordance with the make, model, production year of your car, as well as the type, displacement and power of the engine. Moreover, you need to pay attention to component’s operational pressure value. And compliance of thread diameter and pitch with parameters of original equipment is important for proper installation.