Hi,
By chance, have you scanned the computer to see if there are any diagnostic codes? Also, have you checked to make sure fuel pressure is within spec? If you haven't, I would confirm it is. Here is a link that explains how it's done:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
If you look at the attached pic, it provides the manufacturer's fuel pressure specifications.
Let me know if you have already done this. Also, if you did scan the computer for codes, let me know what you found.
Take care,
Joe
See pic below.
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Thursday, February 3rd, 2022 AT 6:49 PM