what dose code po420a mean

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Check engine light came on said catalyst system low for any efficiency code po 420a what do i have to do to fix problem. thanks for any help

Kezorm in Bossier City LA

Jun 15, 2010

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What are the best Chevrolet repair shops?

RepairPal Certified shops can diagnose and repair your 2003 Chevrolet Impala. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

2003 Chevrolet Impala auto repair 2003 Chevrolet Impala estimates 2003 Chevrolet Impala questions 2003 Chevrolet Impala problems 2003 Chevrolet Impala recalls

What is your question?

Popular Answer

what dose code po420a mean

What is your question?

Check engine light came on said catalyst system low for any efficiency code po 420a what do i have to do to fix problem. thanks for any help

Kezorm in Bossier City LA

Jun 15, 2010

2 Replies

Popular Answer

user91328on Jun 15, 2010

replace the cat. only use cats that are california approved or the light will return. Roy

Kezormon Jun 16, 2010

thanks for the info. I did little research kind of thought that was it but wasn't positive thanks again.

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Visitoron Jan 10, 2011

WHAT DOSE CODE MEAN

Join the conversation!

Popular Answer

What are the best Chevrolet repair shops?

RepairPal Certified shops can diagnose and repair your 2003 Chevrolet Impala. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

2003 Chevrolet Impala auto repair 2003 Chevrolet Impala estimates 2003 Chevrolet Impala questions 2003 Chevrolet Impala problems 2003 Chevrolet Impala recalls

2 Replies

Popular Answer

user91328on Jun 15, 2010

replace the cat. only use cats that are california approved or the light will return. Roy

Kezormon Jun 16, 2010

thanks for the info. I did little research kind of thought that was it but wasn't positive thanks again.

Reply in Thread

Visitoron Jan 10, 2011

WHAT DOSE CODE MEAN

Join the conversation!

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what dose code po420a mean

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