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[T3] Lights on, idle drops


<x-flowed>Hey folks,

I'm not proud that I only just noticed this after having this car for so long, but:

Last night I started my car up, and when I turned on the lights noticed a significant drop in its idle. I'd bet it was as much as 50 rpm although I didn't have the energy to measure it right then. Turned them off again and the idle went up. I guess the fuel pump power is being drained by the lights?
But wouldn't the brain tell it to compensate? Or is the idle a brain-free operation.


Now I do good deal of night driving, more than day driving in fact, so I'm wondering whether it wouldn't make sense for me to set my idle at night with the lights on whenever I do a tune-up, and adjust it if I ever need to make a long daytime road trip.

-M

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