Engine Control Module (ECM) can fail on Oldsmobile 98

The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

RepairPal Verified
Average mileage: 122,000 (100,000–144,000)
6 model years affected: 1990, 1991, 1992, 1993, more1994, 1995
11 people reported this problem
3 people shared problem details
1992 Oldsmobile 98100,000
Haven't had it checked yet. Problem just started last night. Service-Engine-Soon light came on. Then periodic stalling of the engine. The light would go off for about 10 minutes of driving then come on again. I drove for about 15 miles (in-town driving, not freeway). The engine only stalled about 4 times during that 15-mile drive. The stall seemed to happen when slowing down to stop at an intersection or would stall immediately after coming to a complete stop. In every case of a stall, the engine would easily start up again with the turn of the key in the ignition.
1992 Oldsmobile 98144,000
Stalling as described previously. Have replaced ecm 2 times. Car runs normally for 4 to 6 weeks and problems begin again. Getting ready to replace a 3rd time under warranty.
not fixed put in coil worked for awhile, doesn't turn over, back fire at first the fan kept running, unplugged it , then plug back in.Lights in the ac spot went to 18888 heater ac defrost fan all the way up could not turn off so i unplugged it.
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