ok so i just put together a mini me in my 95 civic, im using a z6 upper end with a b7 lower, im running a obd2 p28 jumped to obd1, im picking up code 54 crank sensor and code 65 2nd 02 sensor, my car runs like it has a big cam in it when cold and when warm it idles pretty good but some times will dump to about 500 rpms and right back up and when driving i some times will sputter, do i need to replace the crank sensor in the distributor and how do i bypass the 2nd 02