DFI open/closed loop problems

[Andrew F. Gunnesch]

Sure it's in F, not C, Andris?

Since your O2 is stable, however, it leads me to believe that you have
a problem with your sensor or the circuit.

The DFI might likely stay in open-loop mode if it believes that the
O2 sensor is inoperative.

Sure you got the hookup correct ?  Maybe a DVM on the O2 lead at idle
to see if it's changing at all...  or an el-cheap-o LED meter for O2
sensors?

Good luck,

andrew