I did swap a 4l60 (non electronic) in my 1999 transam (ls1)
Connected Park/Neutral switch to pin 34 of blue connector on pcm
If I set trans type to "non elect auto" it does correctly show PARK / D4 in prndl in scanner.. no issue there.
Problem is:
I can't get car to follow idle rpm and air flow tables for Ingear and P/N tables
when its in park, desired rpm goes to 0 rpm and car stalls. Where does that 0 rpm comes from? I have no clue.
Idle airflow always comes from P/N table.
Tried to select 4L60e instead, pcm thinks its always in gear#2 regardless of pin34 being grounded or not.
Tried Manual, pcm think its always in gear too.
What I am missing there?
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