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BOBBYSS
BOBBYSS, Master Technician
Category: Chevy
Satisfied Customers: 17142
Experience:  ASE MASTER CERTIFIED, AA DEGREE AUTO/DIESEL TECH
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My name is ***** *****. I have a 2003 Chevrolet Silverado

Customer Question

Customer: Hi my name is ***** ***** . I have a 2003 Chevrolet Silverado with a 5.3 and 352000 miles. I had a code po332 . I replaced both knock sensors. I replaced both catalytic converters. Then I had a code po300 misfire. Replaced plugs and wires . Now I have a code po332 . PLEASE HELP
JA: Thanks. Can you give me any more details about your issue?
Customer: I did replace the starter .Need it to pass EMISSION
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Submitted: 1 year ago.
Category: Chevy
Expert:  BOBBYSS replied 1 year ago.

Hello, my name is Bobby. Thank you for the question. On this engine you need to change the wiring harness for the knock sensors when changing the sensors. It is the only way to ensure trouble free operation If you did replace it then you need to check the connection at the computer. It is located under the hood next to the radiator on the driver side. Make sure that it does not have any corroded connections. Please let me know if you need more help.