Engine light will come on above 5000 rpm code p0172 bank one system rich. Above 5000 rpm the car falls on its face starts missing and spudering. I have cleaned the throttle body, maf sensor, and changed the upstream o2 sensor nothing has helped. I've searched and Googled I need some help please. Car has 128,000 trouble free miles. I have a MagnaFlow exhaust and zzp cai. I have always ran fuel injector cleaner every oil change. Currently have a can of sea foam in the tank I think it has made the symptoms worse. Plugs were changed at 100,000. Does anyone know the cure to fix this.

 

get it tuned for the intake

 

I've had the intake on the car for 50,000 miles and no issues at all not one CEL has popped.

 

some get them as soon as they install them some get them later some not at all and clean your maf get it tuned