Supra idles awesome with lights on, misses with lights off

88SupraTurbo

New Member
Apr 17, 2005
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Like the title says, i have noticed that with my headlights on my car, even tho up around 750, idles perfectly smooth but when i turn the lights off it idles at 650 but has the odd pop and miss. Does this information help me in anyway in trying to straighten out my slightly rough idle??? or is it all just useless information. Thanks.