My accord check engine light keeps popping up(but goes away when I turn the car off). Im getting a code 15(ignition output) and 17(VSS). The coil is a Blaster 2 and distributor is a d15b/d16z6 one with msd cap. it only comes on after im on the highway and start slowing down(like once I go over 70-80mph and slow down). I know the VSS isnt working right, but is it ok? Anyhelp on how to fix these? Anyone else have these problems?