royalcrown

iTrader: (1)

alright, i'm not sure if this is an internal engine question or not, i'm 2 weeks in to the LS1 engine. but here's a weird scenario. Today at work, i left my fog lights on all day. When i came out to the car after work, I tried starting it to no avail. After i got it jumped started, it wouldn't keep its idle. it would drop way below 500 rpm's and i'd have to give it gas to stay afloat. I managed to drive it around the parking lot a few times to see if that'd help it get back on its feet. then, i tried putting it in neutral to see if it'd hold its idle now, and it barely grabbed it at 500 rpm. Its now idleing at 500 still. What the hell?

nvrstsfd23

maybe get it home and give the battery a good charge then disconnect and reconnect it to the car to reset the computer and see if that helps.

dlandsvZ28

It's called idle relearn after disconnecting your battery or a dead battery.

It will take the car a while to relearn the fuel and timing curves so don't worry about a temporary performance loss.

777

iTrader: (21)

Not necassarily. If the battery is not carrying enough power, it will run terrible no matter how long you let it sit there. I know when mine was dead and I jump started it, it idled at 1500 and kept rising, I let it get to about 2500 and shut it off cause it just kept going up. I recharged the battery and put it back in and it ran perfectly. Of course I did the idle relearn but, it was already idling well.