Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
I am sorry for the long wait
do you have a multi meter on hand ?
are the fuses called ECMB and ECM in the under hood fuse blown and if NOT blown do they both show 12 volts with the key ON ?
then in the inside fuse box check the same for the fuse called IGN0 with the key ON
can you be sure the grounds are clean and tight on the engine ?
or if you run a temp ground from engine to the body ground will the check engine light come back on ?
ECM1 shows NO volts ?
can you run a new ground from the negative battery cable to the engine block ?
ok let me know
how are you making out ?
dont forget to rate us here at Justanswer