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Measuring fuel pressure? +-6lbs. with vacuum line on or off? 700 1988

posted by  someone claiming to be vroom on  Mon Dec 10 10:37 CST 2001 [RELATED]

I butchered an old fuel rail so I could hook up a guage to check the pressure. I checked the pressure while the engine was running. Am I supposed to measure the pressure with the vacuum line on or off? The pressure rises at idle when I remove the vacuum line.

I'm sure somebody out there knows. Thanks Guys.





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New Measuring fuel pressure? +-6lbs. with vacuum line on or off? [700][1988]
posted by  someone claiming to be vroom  on Mon Dec 10 10:37 CST 2001 >


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