Fuel pressure problems

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NDJK

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Oct 30, 2025
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Have a 2010 when the key is in the run position get maybe 4-5 psi. Once you start it it will jump up to 55 then level off at 40. Times it will have a very long crank.

Replaced injectors. Once it starts it will run fine till it sits for a few hours. I will get an O2 code after a long trip for rich

Thoughts? Fuel pump replacement is my next attempt to fix starting problem.
 
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