2003 Lexus GS 300 cat convertors

2003 LEXUS GS 300
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K2SAINT
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  • 1 POST
Engine Mechanical problem
2003 Lexus GS 300 6 cyl 160000 miles

i replaced 1 and 2 cat convertors and still failed vehicle inspection "system not ready". How many miles must i drive for the system to be ready
Mar 21, 2010 at 4:33 PM
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DAVE H
  • ✓ASE Certified Mechanic
  • 13,384 POSTS
  • ASE Certified Mechanic
usually around 40/50 miles with the fuel tank above the half way mark at all times !
Mar 30, 2010 at 4:48 AM
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