P0021 on SUBARU IMPREZA
What P0021 Means on Your SUBARU IMPREZA
Real SUBARU IMPREZA Owner Reports (Source: NHTSA Complaints Database)
"Hard start, rough idle, drove 3 miles, check engine light turns on, code: p0021 bank1/2. did research. it's a banjo bolt filter/screen mine was cracked in half inside the oil line restricting oil to the turbo. managed to remove one easily accessible banjo screen which fixed half the problem."
"Purchased car august 20th. august 24th, 2013 on the way back from pa on 80 east my check engine light came on. problem was diagnosed as cam position timing over advance or system performance b1 and b2. code was p0011 and p0021."
"Code p0021 popped up shortly after engine had rattling noise and shut down."
"I have been having continuous problems with engine light coming on w the wheel skid light also. I went to Auto Zone and the codes P000D, C1422,P00700 and others."
"I own a 2014 Subaru Impreza WRX which was still under warranty(48xxx miles) I’ve been having issues with my vehicle where at times it shuts off on me whenever I come to a complete stop."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P0021 on SUBARU IMPREZA
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
-
1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
-
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.
-
3
Compare repair quotes
Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.