after changin o2 sensors why is the engine light co.ing bach on with code for o2

Asked by sapphire8282 Nov 04, 2015 at 08:36 PM about the 2003 Subaru Baja

Question type: Maintenance & Repair

3 Answers

220,505

These codes are saying that there is something wrong with the heater control circuit that warms up the O2 sensor. Either there is a problem with the wiring, connection, or in the O2 sensor itself. The O2 sensor cannot be fixed, only replacement is required.

47,950

The O2 sensor heaters' grounds are switched by the ECU. so check those big connectors under the passenger side carpeting too.

Your Answer:

Baja

Looking for a Used Baja in your area?

CarGurus has 1 nationwide Baja listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    Jeff Smith
    Reputation
    440
  • #2
    Chris W
    Reputation
    240
  • #3
    300SDLGUY
    Reputation
    150
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Subaru Forester
26 Great Deals out of 1,375 listings starting at $3,495
Used Subaru Outback
55 Great Deals out of 1,103 listings starting at $3,495
Used Toyota Tacoma
43 Great Deals out of 684 listings starting at $9,975
Used Subaru Impreza
30 Great Deals out of 654 listings starting at $5,995
Used Subaru Legacy
15 Great Deals out of 210 listings starting at $3,495
Used Subaru Impreza WRX
3 Great Deals out of 21 listings starting at $7,995
Used Toyota 4Runner
20 Great Deals out of 517 listings starting at $6,825
Used Toyota Tundra
27 Great Deals out of 993 listings starting at $9,240
Used Toyota RAV4
111 Great Deals out of 2,857 listings starting at $2,949

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.