code 41 fix

just a note on something i found out. if you get a code 41 on your metro check the ground wires that bolt onto intake manifold. mine was kicking out a code 41 and sometimes a 13 and 23. found one of the ground wires to intake was slightly corroded and was making intermediate contact. cleaned it up and now all the codes are gone and haven't come back after 2 days of driving