2003 Lexus GS 300



March, 21, 2010 AT 4:33 PM

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

1 Answer


Dave H

March, 30, 2010 AT 4:48 AM

Usually around 40/50 miles with the fuel tank above the half way mark at all times !

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