Found the post and copied the procedure.....

PEDAL DANCE:

clearing codes for K21 - K25 engines

1) turn key switch on, after 3 seconds fully depress acc. pedal 5 times w/in 5 seconds.
2) after 7 seconds, press and hold down acc. pedal for about 10 seconds, until hour meter starts blinking.
3) release pedal and push down again, hold for another 10 seconds
4) hour meter should be on w/ no codes
5) shut off key, and turn back on w/ no codes.