My 93 RRC is running rich. Starts fine when cold but hard starting after it warms up. Code reader below the seat shows "14", coolant temp sensor. Replaced sensor and still won't clear. Plugged another correct ECU to it and got the same result. All I can think is there is a break in the wire somewhere between the sensor and the ECU? Someone said it was O2 sensors, which it could be, but why would it kick out the code 14? Any thoughts would be appreciated.
Thanks,
William

 

I don't know if you're still having this problem but I have had experiences where the only way I could clear a code was by disconnecting the battery for a minute. It clears the codes and they should only reappear if the problem persists.