Questions & Answers for: Subaru Outback p0420

Question about 2002 Outback

1 Answer

2005 Outback Wagon Code P0420 I have a 2005 outback wagon. A few weeks ago I had the check engine light come on and had the code scanned and was given a long list of things that it could be. The code ...

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Engine light came on. The dealership said it was diagnostic code P0420 and that it would cost @ $1,200.00 to repair. This seem pretty high. What is this diagnostic code about and is the repair rate My

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Question about 2003 Outback

1 Answer

P0420 and check engine light I am considering buying a 2003 Subaru Outback wagon with 115k miles on it. It showed a P0420 trouble code in memory, but the check engine light was off. When I cleared the

Check engine light on. P0325, P0420 2000 Subaru Check engine light on. Diagnostics - P0325, P0420, 2000 Subaru Outback 2.5 CODE PO420 CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD BANK I * CODE PO325 ...

2000 Subaru Outback Wagon (100K miles) with P0420 Code I have a 2000 Subaru Outback Wagon with almost 100K miles. The check engine light first appeared about 1 week ago and has remained steady. ...

electrical code P0420 for Subaru outback P0420....Catalyst System Efficiency Below Threshold (Bank 1)

Question about 2001 Outback

1 Answer

Check engine light comes on every 200 or so miles, code P0420. O2 sensor has been replaced. I read that there was a bad batch of catalytic converters in this model. Any other easy tests or fixes? ...

...2008. "Check Engine"is on and Cruise control lamp is blinking. ERROR code 420. P0420 Usually indicates a bad catalytic converter or a bad oxygen sensor. Since you car is 2008 my ...

Question about 2002 Outback

3 Answers

Computer diagnosis P0420 duplicate question P0420 SUBARU - Catalyst System Efficiency Below Thresholdhttp://engine-codes.com/p0420_subaru.htmlForum CodeForum CodePossible causes- Three way catalyst ...

Question about 2002 Outback

1 Answer

2002 Outback P0420 The code is a popular one which means the catalytic converter is not up to its best performance.  The computer uses the front and rear O2 sensors to monitor the activity of the

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