Engine Control Module (ECM) can fail on Buick LeSabre

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

RepairPal Verified
Average mileage: 127,289 (55,000–196,000)
8 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1997, 1998
17 people reported this problem
6 people shared problem details
car just turns over but dont seem to be firing
4 people like thisFlag inappropiate
1994 Buick LeSabre118,000
replaced fuel pump, regulator, ignition modules, TPS, MAP,Plugs and wires,temp sensor, IAC. Car has a miss 90% of he time. acceleration power is in busts, but the engine smooths out, Some times the chime freaks out for no aperant reason while driving. Some times when accelerating from a stop right around 50 mph it acts like you let let off the throttle, it dont die but wont go. you let off the throttle and back on, its fine. changing ECM next.
2 people like thisFlag inappropiate
1995 Buick LeSabre59,500
Bad engine performance . Obd test . Car not fixed yet .
1994 Buick LeSabre138,000
car studders between 30 and 50 miles an hour
1993 Buick LeSabre196,000
The problem isn't repaired. I found out from a repair bill in 1/10/12 that I possible problems with Engine Module Control (EMC). But I never had it repaired. But now I am having problems with engine going off and back on while driving it. I have to warm up my engine before my transmission will run normally. It only takes a minute. That could be the problem with my engine.
1997 Buick LeSabre180,000
Car won't turn over. Replaced the battery & everything lites up. But nothing from the engine.
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