Fuel pressure regulator (FPR) test - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Trouble shooting + Test Procedures Need to trouble shoot whats wrong and need to know the best way to test for it? Here it is.

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Old 10-01-2009, 02:48 PM   #1
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Default Fuel pressure regulator (FPR) test

Locate your FPR on your fuel rail. Remove the vacuum line and see if you can smell any gas or see and liquid gas in the vacuum line.

If you smell or see any fuel, the FPR is bad and needs to be replaced.
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