Do check your end points or the battery connecting points/terminal and check for corrosion. If so, replace if needed. Also, there is a possibility that the battery is not pumping out enough juice, check for that as well
Since you say that it goes off after you rev it to 3k, I'd say the alternator isn't putting out enough charge. This can be caused by a couple things a) Alternator is on its way out b) belt isn't catching the alternator completely (but since you didn't say you could hear the belt squeaking, this is probable not it) c) one of the connections from battery to electro-mag isn't quite right, weakening the strength of your mag field (which translates to check the wires going from battery to alt, I'll let you know which one it is if you can't figure it out)
well there was major corrosion on the battery terminals, i did a minor clean up on it... I just moved so i don't have my tools unpacked yet so I couldn't get the terminals off, they are on really really tight. I think I may start by replacing those because they are pretty beat up.
Because when your terminals are corroded, the battery pushes out less power, hence your charge light coming on.
However, when you install net terminals, your battery pushes out enough power needed to power your whole car.
What I am trying to say is that your battery could already be dying, but because of the corodded points, it seems as if there still is juice left in the battery when there isn't infact. The corroded points make the battery pump out less power. But when these points are changed, you might see the real battery performance if is not dying or dead already.
A forum community dedicated to Mazda MX-6 owners and enthusiasts. Come join the discussion about restorations, performance, upgrades, modifications, classifieds, troubleshooting, maintenance, and more!