As the title says, it flashes on once, I've tied to pull codes nothing but 12, so it's nothing with the ECM. Migr it also be related to my tach tacking out randomly. Also it appears that im charging at about 16 volts.

They only thing I've done recently was replace one set of headrest speakers

Check your alternator wirinng

If all ok replace your alternator

The wiring should be ok, only thing I've done to it was replace the belt about 6 mo ago

quote Originally posted by ZombiePenguin: Also it appears that im charging at about 16 volts.

Test how? Dash meter? Test at battery using a real meter.

Year of Car? Can matter...

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

Would you believe loose battery cables, I must not have tightened them all the way when I replaced it a while ago. Problem seems to have gone away. Felt like an idiot though when I went to get the alt tested

[This message has been edited by ZombiePenguin (edited 10-20-2010).]

Hommer says "Doh!"

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

Are you sure that it's not just the idle dropping too low when you take your foot off the gas causing a momentary stall like condition and it's the "bulb check" function that you're seeing? is it only the SES light?

I think the over volt situation was what made the ECM signal the SES light on. The ECM does report the input voltage to the ALDL data stream