After I have driven about 5-10 min. the battery light will flicker then turn off, then flicker again and stay on. After that happens the idle begins to fluctuate between 800 and 1200 rpm when im in nutral getting ready to stop. ONce I stop the idle stays at 1500. Any ideas? Why would the battery light stay on?

 

Have you checked your alternator? I recently had this problem and swapped it out with an OEM replacement, fixed the problem.

 

well i did put in a shorter belt. I have a b16 in it and i got the belt for a sohc. Would that matter?

 

i dont think that would matter because belt is only use to rotate the alternator, i think your alternator is toasted get a new one or used one from junkyard and it should work right away. happened this to me before just change the alternator and get the right belt for your engine

 

test and change alternator if bad...also check your battery life if your running a strong amplifier without a capacitor...!!!

 

hit up vatozone man have them run a chrageing test and get what ever they say is bad lol

 

lol vatozone nice ahhahaha i learned a new name for that store ahahah

 

yeah. The dash lights seemed to be dimmer than usual. HAs to be the alternator then??

 

Put a voltmeter on the system and watch what happens while you drive around.

It probably is the alternator. It could be the ecu or battery. It could be a ground fault that's temperature sensitive in the wiring harness.

I don't like the idea of throwing parts at the problem, but sometimes that's all you can do.

 

check your battery connections and altenator belt to be sure its good and tight.have it tested to be sure both are good.

 

Why would my idle get all messed up because of the battery light coming on?

 

I would assume it's because there's an abnormal power drain on the battery much in the same way your idle dips down when you turn on your headlights.

I was always told on here that whenever that light comes on, the alternator's the culprit. Tighten the belts, and if that doesn't work, get a new one.

 

I tested the alt and it passed all 6 times. If the grounds are the problem where are they all at? Any pics?