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1999 Lexus RX300 Question: check engine light

 

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jufor, 3.0L V6, Issaquah, WA, February 09, 2011, 19:03
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I noticed my check engine light come on, and i also get a knocking sound when i try to accelerate.
In addition when i am accelerating, the check engine light flashes. I also noticed a burning smell, what can be the issue. it is a 1999 lexus RX300

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  • Answer #1

    Greg-Julia from Auburn Foreign & Domestic Car, February 09, 2011, 19:38
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     Journeyman

    It sounds like you may have multiple issues but the flashing check engine light indicates a misfire- start there 1st. Greg

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  • Medium-star Best Answer
    patrick mannion from Greg Solow's Engine Room, February 09, 2011, 19:39
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     Master

    If the Check Engine Light/Service Engine Soon light illuminates while you are driving, the car's on board computer sees a fault in the engines management system that is causing an excess amount of pollutants to be emitted from your car. This could result in engine damage if left neglected. Some problems that can cause the Check Engine light to stay on may take two "drive cycles' to complete before illuminating the Check Engine Light. The computer sees a problem and looks for an identical set of circumstances to occur to confirm that it has indeed seen a problem before turning on the light. A Check Engine light that continually flashes while you are driving is serious and is a sign that the computer sees a problem that seriously risks damaging the catalytic converter which may result in an expensive repair or even may cause a fire! Diagnostic codes are stored in the vehicle's computer and can be retrieved using a scantool that communicates with the computer in your car. We have in our Repairpal website an encyclopedia with in depth articles about computer, and computer control systems, emission and driveability problems. http://repairpal.com/check-engine-light
    Could be a failed ignition coil or air flow meter problem that could cause a lean condition.

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    jufor, February 09, 2011, 20:33
     Rookie

    Thank you both for your response, it surely helps. I have been trying to do some research and found similar feedback.
    I am afraid i may not even be able to drive the car to an auto shop, is it better to have it towed or risk driving just about a mile?

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