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

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

Question type: Maintenance & Repair

3 Answers

Codes are p0038 and p0030

65,155

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.

3,940

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

Your Answer

Add photo

Related Questions

  • OBD2 Codes...CAT, O2 Sensor, or Something Else? 5 answers

    I have a 2000 Subaru Legacy L Sedan. It died while driving home. The lights, radio, and power all work, so I don't think it's the battery or alternator. I checked the belts, and the car has gas and...

    2000 Subaru Legacy L

    -

    Maintenance & Repair

  • "Check Engine" Solid - Flashing "Cruise" '05 Forester 16 answers

    I have an '05 Forester / 122k miles. Twice I've had the blinking cruise & check engine lights simultaneously appear. Both times I've managed to resolve the issue by filling the tank up with premium g...

    2005 Subaru Forester XS

    -

    Maintenance & Repair

  • i have a code 32 but put in sensor and check eng still on 2 answers

    1993 Subaru Loyale 4 Dr STD Sedan

    -

    Maintenance & Repair

  • Check engine, traction, cruise control lights 1 answer

    I have a 2009 subaru impreza 2.5I and yesterday I had my winter tires swapped out with summer tires. After that I turned on my car and my cruise control light is blinking, check engine, and tractio...

    2009 Subaru Impreza 2.5i Premium

    -

    Maintenance & Repair

  • O2 Sensors 7 answers

    Replaced 2 (Denso) O2 sensors with 2 (Bosch) sensors and the scanner still reads P0052 Bank 2 sensor 1 Heater High and P0058 Bank 2 Sensor 2 Heater High.

    2003 Dodge Ram 1500 SLT 4WD Quad Cab LB

    -

    Maintenance & Repair

Baja

Looking for a Used Baja in your area?

CarGurus has 1 nationwide Baja listings starting at $9,988.

Postal Code:

Search Subaru Baja Questions

Subaru Baja Experts

#1 Jeff Smith
Jeff Smith
Reputation 90
#2 walth
walth
Reputation 80
#3 speedyparson
speedyparson
Reputation 50
View All

Related Models For Sale

Used Subaru Outback
31 Great Deals out of 567 listings starting at $3,495
Used Subaru Forester
74 Great Deals out of 806 listings starting at $2,495
Used Subaru Impreza
38 Great Deals out of 739 listings starting at $2,450
Used Toyota Tacoma
21 Great Deals out of 754 listings starting at $4,999
Used Subaru Impreza WRX
94 listings starting at $8,994
Used Subaru Legacy
11 Great Deals out of 388 listings starting at $2,490
Used Subaru Impreza WRX STi
60 listings starting at $17,130
Used Nissan Frontier
7 Great Deals out of 345 listings starting at $4,900
Used Ford F-150
286 Great Deals out of 7,845 listings starting at $720
Used Ford Ranger
44 Great Deals out of 305 listings starting at $1,790
Used Ford Explorer Sport Trac
64 listings starting at $3,493

Used Cars For Sale

2003 Subaru Baja For Sale
1 listings starting at $9,988