'95 Oldsmobile 4.0  AURORA (northstar motor)

After One Backfire then 14 Miles limping home,
the local Mobil Station ran a diagnostic Stating the Following:

34 MAP SENSOR
43 LEFT O² SENSOR
36 EGR PINTEL RANGE
45 RIGHT O² SENSOR
15 INPUT SPEED SENSOR

52 DEFECTIVE ECM
109 INTERNAL ECM PROBLEM

121 A/C TEMP SENSOR PROBLEM

I love the car. It ran very well for 8K Mles, over the the 2 years I
dove it,... before that Dang Backfire!    

ANY helpful feedback much appreciated!

    --- BOB, PLUMB