Car stall and is hard to start at times?

1998 NISSAN PATHFINDER
130,000 MILES • 6 CYL • 4WD • AUTOMATIC
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WMROCZKA
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Car stall and is hard to start at times. Can start if I spray starting fluid in intake plenum. Replaced fuel pump, filter and relay. Still stalling. I am in the process of replacing fuel pressure regulator. Any other parts that would cause this problem?
Jul 6, 2010 at 7:20 AM
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SQM
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Hello,

If you are able to start it with starting fluid, then it means that the engine is not getting fuel.
As you have a new fuel pump, it could be due to a clog in the fuel line or a bad fuel pressure regulator.
Check the fuel pressure using a pressure gauge. This vehicle should have 34-43 PSI of fuel pressure.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

I have attached the fuel pressure regulator testing procedure below.

Please let me know of any questions.
Thank you.
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Dec 5, 2021 at 9:11 PM