Ok, my check engine light used to come on, and when i checked the CEL codes it was 9*- Accord Civic CRV CRX Del Sol Odyssey Prelude 85-98** 86-98 97-98 85-91 93-97 95-98 85-98 CYP Sensor (Cylinder) defective circuit or unplugged / defective sensor * not a valid code for any throttle body injection Hondas ** not a valid code for V-6 engines now it used to break up bad up top. And cause of the code, we replaced the whole distributor with a brand new one. Problem went away. and so did the code. Well, the code is back. After maybe a week of absence. Car still doesn't break up near the top, but sometimes it feels like its misfiring. and the CEL code is the one shown above. WTf? any ideas btw, its a obd1 p28 running an h22 in an EG.