error code 20

[owens14]

help!!! car keeps throwing code 20 ELD have checked lots of plugs and alternator any ideas mainly comes on when car has been running ten minutes thanks

[hmetro24]

Try to reset your ecu, Error 20 is bad alternator, or bad ecu .

[owens14]

Try to reset your ecu, Error 20 is bad alternator, or bad ecu .

Thanks will try