did you try a 99-00 civic si ??? did you try a 96-97 del sol or a 93-95 del sol dohc ???? there is a difference between the two. one is the second generation and one is the third. make sure you try the 93-95 dohc, and if you tried a 1.6, the sohc is a 1.6 to so be careful you didn't try the sohc and not the dohc. good luck