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Old 06-23-2020, 07:48 PM
Mike1261 Mike1261 is offline
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Join Date: Aug 2018
Location: Central FL
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I finally got a fuel pressure test gauge that works!

Upon starting it gets 49psi

With a little rev up in Park it jitters between 47-49 and stabilizes at 49.

When turning off the ignition it drops to 45 then slowly down to 43 within a few seconds.

Then I left the gauge connected for 3 hours and came back to it reading 25.

How does this compare to what it's supposed to do? Seems like the pump is working ok but the check valve might be bad, ish? Or leaky injectors? Both?

I have a new pump and filter arriving Thursday either way.
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2006 BMW X5, 3.0i - 133,000 miles
2003 Ford Mustang GT - because having Two cars that keep dying seemed more exciting.
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