It's running better but check engine light is still on. Going to get it scanned this weekend

 

Well after running fine for a while it is back to not running right. On start up it sounds great for 2-3 sec then starts sputtering like it is running out of fuel. If I hit the gas pedal sometimes it will rev and sometimes just bog until it quits. I tried cleaning the MAF again and hooked a gauge to the fuel line and we have 58 psi steady. The needle jumps around when it is quitting but never below 55-56 psi.

Throttle body still looks clean.

Any ideas?

 

And the code(s) are??????????????????????????????????????????????? ???????????????????????

Buy a scanner already, or go to an auto parts that can scan it for you.

 

Codes kept saying maf so we replaced it with a new GM part from Rockauto. Idle is already better and the engine shaking disappeared instantly.

We'll have an update in a couple of weeks after testing some more.