P2138 on SUBARU IMPREZA
What P2138 Means on Your SUBARU IMPREZA
Real SUBARU IMPREZA Owner Reports (Source: NHTSA Complaints Database)
"Driving about 30 - 35mph when all of a sudden the car lost power. the car did not stall, but engine went down to idle speed and my accelerator pedal had no throttle control. the "check engine " light came on as well as the "traction control" light."
"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."
"Car throws a p2138 code and car goes in limp mode with the accelerator pedal non-responsive. have to pull over and reset ecu to get back on road. have replaced accelerator pedal, throttle body, relay, and ecm at subaru dealership. happened dozens of times."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P2138 on SUBARU IMPREZA
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.