i have an autoxray scanner and i think my fuel pump is weak and might fail in the near future. can i use my auto xray to see if its not up to standards ifso what readings should i look at. i do not have a fuel pressure tester and around here they will tell you that your fuel pump is bad and you need to replace it reguardless if something is wrong with it.

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Chris,

The scanner will not read fuel rail pressure. You need a pressure gauge for that, and that is the most effective way to test the fuel pump capability. A good pump should be able to produce at least 60 PSIG when dead-headed (no flow or return fuel from the regulator). The other test is a flow test, where the pump is allowed to pump fuel for fifteen seconds into an open container. A good pump should flow at least one pint in 15 seconds.

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Later,
Vader
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