when i start my car the check engine light turns on. however, i looked for the blue connector pin and inserted the pin there. the check engine light turns and stays on but doesn't blink. i've researched a few other forums online but none helps. i'm a bit confused. i'm thinking it's a faulty o2 sensor since the car drives fine. what do you guys think?

 

sounds like either your blue ecu diagnostic connector as bad wiring or you didnt hook it up right. may be wrong but i would say its probably the later. dont get mad but you may have just put too big of a jumper wire and you didnt get good contact on the terminals in there