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1999 Acura RL Question: Check Engine Light



darrius, 3.5L V6, Charlotte, NC, December 12, 2010, 12:24

I disconnected battery and, check engine light was off until I got up to 45 mph and light came back on. Any suggestions. Also, car has 270,115 miles on it and, runs great even with light on.

2 Answers
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  • Answer #1

    December 12, 2010, 23:57

    You will need to get a diagnosis on your vehicle by a qualified mechanic. To me, it sounds like a fuel control issue (oxygen sensor, etc). Not entirely sure, the diagnosis will tell you everything you need to know. Good luck.

    Here are some shops near you... http://repairpal.com/directory?address=28215&car_brand_names=Acura

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  • Answer #2

    December 13, 2010, 00:41

    Disconnecting the battery won't clear the trouble codes or fix anything. If the light's on, it's indicating that the computer detects a fault in the sensors and control systems. It should have data and trouble codes stored in the computer and you need a scanner to access that information. Then you can fix the car. With that mileage, the first thing I suspect are oxygen sensor or catalytic converter problems which you may not notice driving the car.
    Here's a directory link for you:

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  • Reply

    Visitor, December 13, 2010, 23:25

    Thanks for the imformation. I replaced all 3oxygen sensors last year. I did notice that when the light is off, It has very quick acceleration.

    Thanks again.

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