I have read a lot about this but most don't answer my question directly. I have an LS3 using the early ECU with 24x crank and 1x cam sensors. My cam sensor is an ACDelco 12591720 and it's the "only" one I can find and I believe it's correct for both 1x and 4x cam gears (located in front cover). I have read where some say if I have a 1x cam gear I need the dark colored sensor like the crank has. The 12591720 is tan in color. (and says "made in China" which I hate to see from ACDelco). I can't find any other sensor for the front cover other than this one.
My car starts oddly at times and I need to verify I have the correct sensor. Thank you