[ndrider]

Hey guys. I have a '96 580 EXT EFI. Always keep the sled on a battery tender/charger. Sled runs good for awhile (an hour or so) then starts to bog down and dies. Let it set for 5 minutes or so to get it started back up but then will only get to around 4500 rpm set there and sputter and die out again. Put the sled back on the charger for a day and run it again the next day. Does the same thing runs good and then dies again. Charged the battery up and put a load test on it and it showed the battery was good, also changed the plugs. Any suggestions would be great. Thanks.

 

[kccats]

Have you checked the fuse for the charging system? Wireing? Ground?

 

[RJ Gleason]

How old is that battery?

 

[ndrider]

All fuses and wiring good. Battery is a year old.

 

[RJ Gleason]

When it is doing the sputter thing, check the voltage at the battery. It should be 12.5vdc with the engine at idle and 14vdc after 3000 rpm.
I suspect a charging issue.

Is it showing any trouble codes when it runs like this?

 

[kccats]

May be a bad ground?

 

[ndrider]

Do you mean a ground to the battery or to the frame? or both?

 

[ndrider]

Where do you find the trouble codes? Is there different flashing of the lights on your speedo and tach that would show this?

 

[RJ Gleason]

It would be a flashing light on the ECU box.