Lean codes both banks.

Replaced: plugs&wires, mass air, fuel injectors, egr, fuel&air filter, fuel pressure regulator, air temp sensor, oil.

I temporarly fixed problem by unplugging air temp sensor and the vacuum line on the fuel pressure regulator with premium gas. Even with the check engine lite on this fixed the problem temporarly.

Does any one know what the static fuel pressure should be and what the wot fuel pressure should be?

Might be a bad fuel pump?

Or bad cat. ?

 

Check the PVC elbow at the back of the intake. probably leaking probably need a new one..

 

That's what I was thinking.
Spray ether or starting fluid on it to see if you get a raise in RPM.

 

you guys are bad *** I'll try it!

 

Sounds expensive.

X3 on checking the far back pcv elbow

 

Fuel pressure should be above 30 at idle, at wot it can be as high as 55-60. Seems Luke you took the let's throw parts at it approach....how'd that work out?

 

Lean codes are almost always an indication of vacuum leaks. The PVC is usually the source. Maybe the thing needed tuned anyway.

 

Yeah the pcv hoses are good for that. I see where he was going with checking the fuel pressure but replacing injectors, egr, even plugs/ wires for lean codes? Shoot first ask questions later sounds BA but it's real hard on the wallet.