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Night idke

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Old Nov 23, 2017 | 03:28 PM
  #1  
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Default Night idke

i have ls430 and I noticed each time I turn the lights on the idle gets hire, checked my alternator and it’s in good shape. Can somebody please help me.
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Old Nov 23, 2017 | 08:12 PM
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A hundred to 150 more turns at idle with all of the lights on.... Possible. What does your tach read before lights... After lights?
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Old Nov 23, 2017 | 08:15 PM
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It reads about 650 before light after light about 850
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Old Nov 23, 2017 | 08:24 PM
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I don't think you have anything to be concerned about. The system is just increasing idle speed so the current draw is met.

​​​​​​​Battery in good shape? Tested? Even if it is good, I still think your OK with that little rpm change.
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Old Nov 23, 2017 | 09:18 PM
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Modern headlamps consume a lot of power. Alternators produce more amps the faster they spin. The ECU in your car adjusts the idle accordingly.
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