Engine - Rough Idle/CEL After Battery Disconnect

SOURCE: Subaru Tech Tips

TITLE: Rough Idle/Check Engine Light After Battery Disconnect

APPLIES TO: 01-04 Legacy
01-04 Baja

SERVICE TIP:

Please be aware that a rough engine idle condition may occur when the vehicle's battery is disconnected for less than 30 minutes. Clearing the memory with the Select Monitor will correct this condition. If the battery is left disconnected for more than 30 minutes, the ECU will most likely clear itself.

Please feel free to share this information with your customers who perform their own service work or those who may have a need to disconnect their vehicle's battery such as during certain accessory installations.