jj_long81
Well-known member
hello. check engine light does not work. i test at bulb. .93 volts when in diagnostic mode. selinoid is clicking. the same voltage is measured at diag connector and at computer brown wire .93 volts. why? still thinking my ecm is bad. i dont want to buy if im over looking somthing. ive checked all grounds. checked all fuses. i found a 30 amp fuse for my fan that had gotten hot and melted a bit but it did not blow. could this be related to my check engine light not working?