Multiple misfires on every cylinder at idle

[Chrisp]

I have an 06 GMC Sierra 1504.8 at idle after it goes into close loop I have multiple misfires on all cylinders goes away when you crack the throttle cannot find vacuum leaks bad sensors only code it gives is for multiple random’s help

[riverbanks]

What does the MAF read at idle in GPS?

[Chrisp]

[riverbanks]

Switch scanner to GPS,g/s, should be in settings

[CamGTP]

How's fuel pressure?

 

Every ran an engine/injector cleaner through it?

 

How are the spark plugs and wires?

[bg1988]

On 9/5/2019 at 4:10 AM, Chrisp said:

I have an 06 GMC Sierra 1504.8 at idle after it goes into close loop I have multiple misfires on all cylinders goes away when you crack the throttle cannot find vacuum leaks bad sensors only code it gives is for multiple random’s help

check the battery connections  

 

dirty?

 loose?