Misfire at idle 300 i6 f150

[Orangepeel]

Show me that I am wrong. You post and don't comprehend or take advice well. I have been working on 4.9's for 25 years. I have the factory documentation where you have misleading internet information. Good luck with your truck....you will need it at the rate you are going.

I did show you… look above . Identifix is a professional shop software….. are you in the industry? If so certainly you’ve heard of direct hit identifix? Or Mitchell 1 pro demand? Both are professional level shop programs. Both have different information for the same year truck.
You say I don’t comprehend well but you’re the one that didn’t look above and see what I’m saying in regards to conflicting information. Then you say that’s just internet information…. Professional level shop programs.
Let’s ask this where did you get your info? Can you post a picture? I posted pictures of mine proving it says what I am saying it does which is conflicting.

 

[OVERKILL]

Regulator is replaced. It was or at least appeared to be original. The front fuel tank running is 30psi and doesn’t drop or rise when engine is revved.
The inconsistency of accurate information with this truck is super frustrating. Professional grade sources cannot even provide trustworthy fuel pressure info.

Motor says one thing oem says another Mitchell 1 says the same thing oem says. Frustrating!

Assuming this is the same return-based fuel system that everything EEC-IV I've owned had/has (our ski boat is EEC-IV), when you pull the vacuum line off the regulator, you should hit the max regulator pressure, which, depending on the sources you and others have listed, is either supposed to be 45 or 60 PSI. I assume you are just using a gauge on the shrader port to verify?