Thread: idle affected by light on/off WTF (New)

Since i installed my SSAC headers I noticed that if I am at idle and turn my lights on the idle drops ~80RPM and gets a lot rougher. I cleaned my grounds etc before so not sure what is causing it. Any ideas? Also I did remove the AIV when I did the headers but overall that improved idle as it usually does. Thanks

that's what happens when you run fake parts.

yeah thanks champ, you mean the same 'fake' parts that have out dynoed hotshots.

Might be the grounding of the o2 sensor. I read somewhere that it doesn't ground well with stainless.

hmm that sounds reasonable but unfortunate, I really cant stand idle issues!

I say alternator not charging enough

Increase idle as a bandaid to 900 until ur alt dies.

well i check out the voltage from the alternator when i get a chance and see if thats it. Would raising the idle 100rpm really make that much of a difference? because even when it drops it is still above 750rpm or so. thanks

Yeah, your alty is dying. Raising it 100 RPM would help; just remember - 100 RPM is a ~12% increase if you're already idling at 800 RPM.

F&$%^$%^ ! I hate spending money or replacing stuff when it means the money for upgrading has to be used up. Oh well so be it. Thanks for the help guys