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Old 05-12-2008, 11:57 AM
UT_Tech UT_Tech is offline
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Wur?

Tim this is a key point so make sure of you results or if needed repeat the test. There was no residual pressure when you started the car because you fitted the gauge. When you removed the fuel inlet fitting there was also no residual pressure. We'll come back to that.

When the gauge was on the car and you first started the engine it's normal for the fuel system to take a few seconds, perhaps 5 seconds, to pump up the control pressure. During this initial pressure rise did the pressure rise up to 40+ immediately (within a few seconds), or did it rise to 20+ PSI then rise slowly to its final value over a minute or two?

When the car was fully warm and you saw 52 PSI were the vacuum hoses connected? If the vacuum hoses are disconnected the control pressure should drop to about 40PSI. Does it?
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