Uploaded July 2010 | Updated September 2026, 1 week ago

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This is a MADE IN USA fuel pressure gauge i got from Summit Racing. As the car warmed up my fuel pressure always went to zero but the car still ran. I replaced the fuel pump thinking it was dieing and it still did it!

then i tried this...

even with the gauge mounted outside the engine bay, the warm fuel makes it read low, this was tested with another gauge to compare.