Check engine light troubleshooting help

Discussion in '2.3L (N/A & Turbo) Tech' started by 4bangerjames, Oct 31, 2011.

  1. The check engine light comes on after about 5 minutes of soild driving and goes away after everytime I cycle the car on and off. But 5 minutes later its back on. I have also realized that my gas mileage is worse then its ever been. I have checked all the basic stuff and found everything normal. Does any one have an idea of what this could be?
  2. That sounds a lot like an oxygen sensor issue. Have the trouble codes scanned, it should tell you exactly the issue.
  3. Run the codes. This is how. Usually easier for 2 people to do one to count and one to count.
    List of codes same site. Then let us know can help more. Maurice

  4. I agree. Sounds like the O2 sensor is on it's way out.