the engine light stays on.

60

Asked by Dec 25, 2012 at 01:53 PM about the 2004 Land Rover Discovery HSE

Question type: Maintenance & Repair

Code points to O2 sensor.  Will this fix the issue.  I originally thought it was the quality of the gas being used.

4 Answers

102,815

O2 sensors get "lazy" when they get older and MPG's decrease. They usually are good for 80,000-100,000 miles. Replace it to reset the code and increase fuel efficiency.

3 of 3 people found this helpful.
1,205

Your Land Rover won't pass the smog test with a bad 02 sensor. Replacing the sensor should fix the check engine light problem but no guarantees. Have the hoses from the 02 sensor checked for cracks or holes.

1 of 1 people found this helpful.
102,815

Hoses on a O2 sensor? Smog test?

3 of 3 people found this helpful.
1,205

02 sensors are part of the smog system on every car. When the sensor goes bad or a hose goes bad, the car won't pass smog. Quit often the Check Engine Light will go on. The Check Engine light is a "catch all" for many problems.

5 of 5 people found this helpful.

Your Answer

Discovery

Looking for a Used Discovery in your area?

CarGurus has 1,992 nationwide Discovery listings starting at $50,775.

ZIP:

Land Rover Discovery Experts

  • #1
    Simon Briggs
    Reputation
    520
  • #2
    Matt Mankinen
    Reputation
    380
  • #3
    chassy
    Reputation
    360
View All

Related Models For Sale

Used Land Rover Range Rover
66 Great Deals out of 4,264 listings starting at $4,500
Used Land Rover LR3
9 Great Deals out of 333 listings starting at $2,950
Used Jeep Grand Cherokee
1,076 Great Deals out of 72,500 listings starting at $1,195
Used BMW X5
363 Great Deals out of 15,883 listings starting at $3,300
Used Toyota 4Runner
335 Great Deals out of 26,793 listings starting at $1,800
Used Toyota Land Cruiser
11 Great Deals out of 1,030 listings starting at $5,999

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.