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my van failed nj inspection for emissions and check engine light. on 2007 Chevrolet Uplander

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
A mechanic replaced cat converter, oxygen sensor and I replaced the gas cap. Still the engine light comes back on.
(3) Answers
when was the last time you changed plugs and wires they do last longer than in the old days but not forever
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