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Dave Nova
Dave Nova, Cadillac Technician
Category: Cadillac
Satisfied Customers: 1522
Experience:  ASE Master Certification. GM World Class Certification
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Code reader comes up manufacture control

Customer Question

code reader comes up manufacture control
Submitted: 4 months ago.
Category: Cadillac
Expert:  Chad Farhat replied 4 months ago.

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be be posting a replay ASAP

Expert:  Chad Farhat replied 4 months ago.

what is the problem with car ?

does it say manufacture control and no number after that ?

Please let me know

Thank You
Chad Farhat
ASE Certfied Technician

Customer: replied 4 months ago.
Catalyst system efficiency below threshold bank one. Po 420. Evaporative emissions system leak detected Large leak. Po455
Expert:  Chad Farhat replied 4 months ago.

what is the mileage on it ?

do you have a like major lack of power ?

the P0420 is the catalytic system below efficiency , if you clogged up that is the problem ?

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