Hi guys ,
I changed my si board and have two engine code plugs . one has a 13 on it the other 15 i can't remember which one to use . i have a 1990 320i cabby . what does the plug do and should i worry about which one goes back in . plus tried to re set oil light service by jumping 7 to 19 but nothing happens after 12 seconds . i have the lithium batts . the red and yellow lights are on , after jump the red goes dim i turn ignition off pull out jumper . ignition back on 5 secs red light comes on again . any help would be great .
