2004 Chevrolet Impala Does Mean Obd11 Tester Catalyst System Lower Bank 1

2004 CHEVROLET IMPALA
120,000 MILES
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RONNIEKIMBERLY
  • MEMBER
  • 1 POST
what does it mean when obd11 tester says catalyst system lower bank 1
Apr 11, 2013 at 4:13 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
what is the codes we can give a better answer
Apr 11, 2013 at 6:07 AM
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