Tell you some of my problems I'm having

[launch6250]

I had the same problem with mine, it was the fuel pressure regulator. Pop the vacuum hose off of it and see if gas comes out. It should not..Very easy fix

 

[04Hoe]

Fuel Pressure (Key ON, Engine OFF) 385-425 kPa (55-62 psi)
Fuel Pressure (vin Z) 335-375 kPa (48-54 psi)

 

[IowaTahoe]

Thanks for the info guys

 

[IowaTahoe]

Pulled the Vacuum Line off of the FPR and no Fuel came out.

 

[El Capitan]

just a thought. some codes can only be pulled with a vehicle specific scantool attachment. a chevy dealer would have one.

 

[IowaTahoe]

Well I bought a program thats called EasyOBDII that comes with the CD and device that hooks up to the vehicle to USB. Well it gave me 2 codes, P0171 and P0174. So the first thing I'm going to do is clean the MAF and check the fuel Pressure.

Anyone has any tips now that I have codes, please let me know.

Thanks a lot.