60 series eng code

[TOWINGNC]

IM WORKING WITH A 99 FRHT WITH A 60 SERIES ENG END. MODLE IS A 67MK60 I have a 128 214 1 sid eng # 1 ecu backup battery data valid but below normal operatioal rang any help would be helpfull and b4 you typ i know 128 is an engine code

thanks towingnc

 

[greg334]

Check the cabling from the battery to the ecm.