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4 Answers
Make sure battery has a full charge and connections all good. If it cranks good but won't start, check the basics. Have a helper crank it while you check for spark at the plugs. If spark everywhere, use a gage and check proper fuel pressure and fuel injector pulse. Any applicable trouble codes? I can only help with testing.
Any applicable trouble codes? How did you check fuel pressure? Is there a Schrader valve on the fuel rail? Some of these systems don't have Schrader valve? I did look at fuel pressure spec in my database, 35 psi--4.0L engine.