2000 Dodge Stratus Error Code: P0138

2000 DODGE STRATUS

135,000 MILES • 4 CYL • FWD • AUTOMATIC

PILOT2969

MEMBER
15 POSTS

I had my check engine light come on yesterday, so I had the code checked at Autozone, came back as a P0138, oxygen sensor bank 1 sensor 2.

I know that this sensor is located after the catalytic converter, but where exactly on the car is it located? I want to replace this myself, and help would be appreciated.

Feb 24, 2009 at 7:50 PM

ZACKMAN

✓ASE Certified Mechanic
4,202 POSTS

P0138 does not necessarily mean the O2 sensor. It refers to the electrical circuit of the sensor. It may be the sensor, or the connector, or the wiring , or the ground to the PCM.

Feb 24, 2009 at 10:16 PM

PILOT2969

MEMBER
15 POSTS

Thanks for the information, this vehicle had sat unused for about a year prior to my purchase of it. I was told by my father to clear the trouble code and see if it comes back, just because it had sat.

If I have to test the voltage, where along the sensor do I do that?

Feb 25, 2009 at 4:06 PM

ZACKMAN

✓ASE Certified Mechanic
4,202 POSTS

Positive to 4, negative to 3.

Feb 25, 2009 at 11:23 PM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.