P0300
SOURCE: randome misfire on all cylinders only under load
Try putting in bosch spark plugs with the 3 electrodes ,might help .As for the code reading well i wouldnt trust that because as its a new car then the chances are its encrypted software so the code you have will not be right.If the plugs do not cure it then its dealer only and i wouldnt be surprised if it didnt end up with a new ECU unit
P0108....Manifold Absolute Pressure/Barometric Pressure Circuit High Input
P0300....Random/Multiple Cylinder Misfire Detected
P0400....Exhaust Gas Recirculation Flow
P0433....Heated Catalyst Efficiency Below Threshold (Bank 2)
Do not have a listing for the 0068 reading as it doesnt exist in my list ,looking at this i would block off the EGR valve with a nice home made coca cola can gasket and this should cure your problems
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