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boyt911sc boyt911sc is online now
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Join Date: Mar 2002
Location: Philadelphia, PA
Posts: 12,680
Garage
Test and confirm......

Install a pressure gauge at the test port located at the fuel rail near intake #1. I used my CIS gauge with the shut-off valve @ closed position. Then test run the FP by bridging fuses #16 & #17. The spec. 33~39 psi. (No Vac. applied or Engine off). If vacuum is applied either by a vac hand pump or a running motor, the spec. is 29 psi.

Switch off the FP and monitor the residual pressure for the next 15 mins. A good residual pressure should be about 14.5 psi./1 bar or more but not less.

Tony
Old 09-12-2020, 05:45 AM
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