My upstream o2 sensor has no power I have a fault p0031 and p0037

Asked by GuruCMMJH Mar 10, 2019 at 07:29 PM about the 2004 Chrysler PT Cruiser

Question type: Maintenance & Repair

Have not checked down stream sensor

4 Answers
2,600

Sirkut_Interrupted answered 5 years ago

Not true ^^ chrysler uses a 5 volt bias to their o2 sensors and as they heat up this 5 volts gets pulled down to your typically o2 voltage ranges.. this can be a great diagnostic aid in looking for o2 heater functionality

Mark helpful
2,600

Sirkut_Interrupted answered 5 years ago

These o2 sensors are ground side switched by the pcm and its expecting to see 12 volts but the computer is seeing low volts on both upstream heater circuits, id check for a blown o2 heater fuse

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

PT Cruiser

Looking for a Used PT Cruiser in your area?

CarGurus has 13 nationwide PT Cruiser listings starting at $4,888.

Postal Code:

Shortcuts

Search Chrysler PT Cruiser Questions

CarGurus Experts

  • #1
    Kelly Little Ashford
    Reputation
    4,520
  • #2
    Gypsy Rose
    Reputation
    3,370
  • #3
    docwade931
    Reputation
    2,910
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Volkswagen Beetle
7 Great Deals out of 155 listings starting at $712
Used Ford Mustang
65 Great Deals out of 1,259 listings starting at $4,995
Used Chrysler 300
34 Great Deals out of 516 listings starting at $4,999
Used Honda Accord
40 Great Deals out of 910 listings starting at $1,599
Used Toyota Corolla
108 Great Deals out of 2,035 listings starting at $2,795
Used Toyota Tundra
35 Great Deals out of 1,184 listings starting at $8,500
Used Nissan Murano
25 Great Deals out of 1,193 listings starting at $2,700
Used Chrysler Sebring
37 listings starting at $4,500
Used Jeep Grand Cherokee
109 Great Deals out of 3,238 listings starting at $4,995
Used Chevrolet Malibu
50 Great Deals out of 1,139 listings starting at $1,295

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.