Engine

1999 LEXUS RX 300
190,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MNO221
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1999 Lexus RX 300: When i start up if i dont give it gas it die out, once i start driving it kicks and jump as it change gears once it change into high gear it run fine if i slow down or stop at a light it does the same thing all over again.The CEL was on but i change the battery before i got to Auto Zone and now they can't get a code without the CEL. any thoughts.
Apr 20, 2011 at 2:22 PM
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KHLOW2008
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After rugnning the vehicle, the CEL should come on again if there are ay faults.

Seems the idling speed is too low causing the problem.
Jul 10, 2011 at 4:43 PM
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MNO221
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Thanks,how do I adjust the idling speed?
Jul 10, 2011 at 6:42 PM
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KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 41,814 POSTS
Idle speed is no adjustable. Cleaning the throttle body and IAC should solve the problem of low idling speed.
Jul 11, 2011 at 1:28 PM
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