Gasoline Fuel System Related Problems of the 2012 Subaru Impreza

Table 1 shows one common gasoline fuel system related problems of the 2012 Subaru Impreza.

Table 1. Gasoline Fuel System related problems of Subaru Impreza

Problem Category Number of Problems
Gasoline Fuel System problems
2

Gasoline Fuel System problem #1

While driving in normal circumstances, engine power cut out, and complete loss of throttle control occurred. The car could only accelerate extremely slowly, and not past 20-25 mph. Thankfully not on a high-speed road. Managed to get home (barely), car worked fine the next day. Dealer found obd code p0128, reprogrammed ecm to remove the code. The same problem had occurred ~1 year previously due to a faulty accelerator position sensor (NHTSA complaint recently filed). Dealer claims causes are unrelated. This can be a serious safety concern if it occurs on a highway, we no longer feel safe driving this car.

Gasoline Fuel System problem #2

While driving in normal circumstances, engine power was lost, and complete loss of throttle control occurred. Car would accelerate extremely slowly, and not past 20-25 mph (presumably 'engine fail-safe mode'?). Thankfully not on a high-speed road. Obd code was p2138, indicating a faulty accelerator position sensor, which was replaced by dealer under warranty.


Gasoline Fuel System related problems in other Subaru Impreza model year vehicles:



Safety Ratings of Impreza Cars
Fuel Economy of Impreza Vehicles
Impreza Service Bulletins
Impreza Safety Recalls
Impreza Defect Investigations