Won't idle after battery disconnect

01 with 3.4 won't idle after sitting for a day with the battery disconnected. I tried driving it for several miles to see if the ecu would relearn programming.
It did not help.

 

Probably get better luck asking this in the 1st Gen trucks section ....
Sarge

 

it may take more than several miles to reset

 

Sometimes a dirty throttle body in combination of resetting the ECM will cause a low/no idle situation.

 

problem resolved. Per instruction from a mechanic friend I disconnected battery again,both pos and neg. Then shorted both leads together for a few seconds. Reconnected battery and started truck. It stumbled on idle for afew seconds and quit. Restarted truck and idle resumed as normal. Thanks to all who responded to this thread even though it should have been posted in 1st gen.