2004 Subaru Outback How to fix Diagnostic Code Readings

Tiny
BODIEPOSTEL
  • MEMBER
  • 2004 SUBARU OUTBACK
  • 4 CYL
  • AWD
  • AUTOMATIC
  • 137,687 MILES
My Sabaru recieved three Dianostic Code Readings. Can you tell me what speciifically needs to be fixed?
1. PO420 (Orange light) - Catalyst system efficiency below threshhold, Bank 1.
2. PO302 (Red light) Cylinder 2 misfire detected.
3. PO420 (Pending)
Thursday, April 1st, 2010 AT 10:29 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi bodiepostel,

Thank you for the donation.

P0420 is usually caused by a failing or bad catalytic converter or leakages in the exhaust system.

P0302 is misfiring of cylinder #2. Check the spark plugs and related parts.
Was this
answer
helpful?
Yes
No
Saturday, April 3rd, 2010 AT 10:04 AM

Please login or register to post a reply.

Sponsored links