ECU questions...

[fax0815]

Hi,

got a few difficult questions regarding standard 4AGE ECU´s.
All the ECU´s got a pin for a O2 sensor input (Ox) but its not programed into the ECU, if the engine didnt come with a O2 sensor?

Ive got a JDM ECU with the partnumber:
89661-12051

If I google with this number its a AE86 bigport MAP ECU.

I´m trying to find out wheter this is capable of running on an O2 sensor or not.
The AE86 (Kouki Trueno) that got me thinking is a non runner, had an engine loom with the o2 sensor plug on it and the ECU with the above partnumber in the boot.

Does a MAP bigport O2 sensor 4AGE exist?
Anyone has a JDM 4AGE to check for me please?

Any help appreciated