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Old 17-10-2015, 02:13 PM   #2
foxtrot3
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Default Re: starting

Hi. The fuel rail isn't holding pressure, could be a number of reasons. Leaky injector(s) letting fuel into inlet manifold. Leaky fuel pressure regulator letting fuel flow back to tank and the non return valve in the pump letting fuel flow back through the pump to the tank. To test all 3 requires a pressure gauge between pump and fuel rail, install gauge and turn on key and see if pressure rises and then turn off key and see if pressure drops. if pressure drops close fuel return line and turn on key and see if pressure rises and turn off key an see if pressure drops, if not it is regulator, if it does it is injector or pump so block hose at inlet to fuel rail and test again. nodrop means injector(s) or a drop in pressure means pump. Cheers MD
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