Advanced fuel pressure testing – going beyond basic pressure

Last month, we talked about fuel pressure testing, covering the basics for testing the fuel pump. If the pump is operating (covered as the first test to conduct), then testing to see that it’s putting out the correct amount of pressure is next. If the pump is operating, but not producing the pressure you expect, then most likely the pump has an issue. There are other things it could be and you may need to know if there is a blockage, a problem with the regulator, an issue with volume (rather than pressure), etc.

To check those things, you’ll need a more advanced knowledge of the fuel system in your fuel-injected vehicle and how to test for these problems specifically.


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