Hi, I have Eldorado TC 1993 4.6 l OBD1 codes

There is a code P080 TP Sensor/Idle learn not complete
In addition it informs change transmission fluid

I replaced PCM module and TP sensor.
Engine is running well, but some gasoline smell from exhaust pipes, why?

Does anyone have an instruction how to get rid of P080 code?

Please let me know, thanks