The fuel injectors can develop leaks on some models, causing the engine to run poorly or to become less fuel efficient.
1991 Nissan Maxima Problem Reports
Most Reported 1991 Nissan Maxima Problem Reports
The crankshaft position sensor can fail causing the engine to run poorly or it may crank but fail to start.
Failure of the vehicle's speed sensor can cause speedometer and the cruise control to become inoperative. A failed speed sensor will require replacement.