Does the 02 have some part in the ecm going into closed loop. I know in the program there is a start up delay and coolant enable.
I though teh o2 has to heat up or it will not go into closed loop. The bowtie brother were arguing this
If the o2 does not get hot enough the car will not go into closed loop . thus the reason for a heated version with open exhaust.
Dennis

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85 vette,383,miniram,ZF6,4.10's..best ET 11.66@1187.00 60' 1.62
w/100HP nirous 11.05@127
http://geocities.com/bowtie8

 

The O2 output has to swing thru two voltages typically .3 and .7 for the ecm to accept the fact that it is wake. It supplies .44v to the sensor at a very low amperage that the O2 has to over power.
The O2 has to be over about 600dF to work. If too long of distance from the ex valve then it must have it's own heat source