CODES HELP ? 314 , 311 AND 553

[howiefisher]

ANY HELP GREATLY APP . check engine light keeps coming on and off anjd car bucks at high rpm like 4000to 5000 like a miss just put on new egr valve

 

[uNdErCoVeR]

Was this done while running or off?

 

[uNdErCoVeR]

here are what your codes mean... If done with engine on...

311: Thermactor air system/fault during engine run self-test

314: Thermactor air system/fault during engine run self-test / left side

553: Air management cicuit 2 failure

if off 553 is Thermactor air diverter solenoid circuit fault

 

[howiefisher]

any idea what would causew these faults 553 was of the other ones are running is my air pump faulty