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idle and head lites

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Old 02-11-06, 06:02 PM
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Question idle and head lites

when my cars idling with out the head lites on its at about 1200 to 1300 rpms , when i turn on my head lite my idle drops to 750 rpms with a perfect idle. the alts new no draw on the gage when i turn on the lites. whats up with this, its funny because when the lites are on it idles great, when the lites are off it idles high with a pop in the exhaust. need advise from the rotor heads out here. i can live with what the cars doing it just bugs me , ya know. lol
Old 02-11-06, 06:08 PM
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plus are the head lites vacum activated?
Old 02-11-06, 06:14 PM
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how are your headlights vac. activated? lol.

search about BAC valve.
Old 02-11-06, 06:39 PM
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ive had two differnt bac s on and it does the same thing, any other advice u can give. i guess whats getting me is the fact it runs perfect with the lite on and even sometimes when there off it idles great , but most of the time when im driving it , its around 11 to 1200 rpms. thats the pisser.

Last edited by RX7FROMCAL; 02-11-06 at 06:42 PM.
Old 02-12-06, 11:24 AM
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have any of u had this same problem?
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