Oliech, who was in prolific form in the last game scoring a goal to help his side rally from behind to grab a 4-2 win over Niort, could however, not find the targets at the Jean Bouin stadium.
An early own goal by Christopher Julien in the 9th minute put the hosts ahead before Willy Boly restored parity for Auxerre in the 29th minute.
Angers however, continued to press with endless waves of attacks and their efforts were rewarded in the 89th minute when Jean Nsame notched in a last grasp winner to ensure the hosts picked maximum points.
The win took Angers to position four on the log with 30 points while Auxerre remain at position 13 with 21 points from 18 games.
Oliech's next assignment will be next Saturday when he faces his high riding former club FC Nantes at home.