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What can cause the check engine light to come on in a Acura RL i recently replaced the catalytic converter. light doest show up that time. but right after a week. check engine light came on?
Wiki User
∙ 14y ago
I have a 2000 RL and the code P0420 came up for bad CAT efficiency. Replace the CAT with a NAPA aftermarket unit. Lasted about a year and same problem showed up. Have talked to many people and mechanics that are know Acura's. The aftermarket unit was smaller in size and doesn't have the flow characteristics of the original. Heard from others that they eventually replaced the CAT with a Acura factory CAT and have had no more problems. I know.... about $700 more.
Wiki User
∙ 14y ago
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