Does any one kno the fuel pressure on a 2002 5.3L? Or is there a link I can look this up?



Thanx
Matt

 

If you have the non-flexfuel its about 55-62psi and the flexfuel is about 48-54psi with the key on engine off

 

Thank u sir. But I was told if it was off by a few pounds it could be causing trouble! I have a lean code on bank one and two! po171 and po174! If that tells u anything! My tuner is going to check it out on mon but I was just wanting to try a few things my self.


p.s. Its a non flex fuel! dunno the point of those anyway lol!

 

Have you made any changes or done something that would cause a vacumn leak?

 

The two codes are more for unmetered air entering the engine and the o2 sensors reacting with adding more fuel to compensate. As brent5631 asked if you did anything to the intake system or to the manifold. When i last had those two codes was when the intake manifold gaskets were bad and causing a leak after reinstalling it. Hope that helps you out any