Question about 1999 Lexus RX 300

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Check engine light on

Good morning i have a 1999 lexus rx300 the check engine light come on i checked the hoses by the air filter they are ok. i would like to get information about what causes this problem. thank you, JP

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  • Mike Vincent
    Mike Vincent May 11, 2010

    need to scan computer to see what codes are stored. then let me know what they are and i should be able to help you.

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You need to have it hooked to a scan tool and find out why it came on. Could be a 1000 things.

Posted on May 28, 2009

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Posted on Jan 02, 2017

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1999 Lexus rx300. New knock sensors, harness,etc. when I start it,it knocks ,has no power,very sluggish.


Check the pressure in the fuel pump
Check the fuel filter for dirt
When there is weak fuel pressure, it generates this type of failure
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I have a Lexus RX300 1999 model and have this recent problem. engine running normally but gear gets stuck in Parking mode and won't shift. had to depress the emergency button on the gear shift and


Hi there,

Some automatic vehicles rely on the brake switch (mounted on brake pedal) to be activated by depressing brake pedal. This signal then operates a relay and switch, to release the gear lever.

Firstly, I would check the brake pedal switch (are your brake lights working?).

If brake switch is confirmed OK, then inspect the relay (and related circuit components) of the gear release switch.

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Good luck.

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1 Answer

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