11-03-2023, 04:05 PM | #1 |
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Emissions issue - need help!
I have a 2018 x5 with 60k miles on it. Unfortunately I’m not able to pass inspection in NJ because I keep getting a check engine light that says catalytic converter efficiency below limit value. I already swapped out the oxygen sensor with a New Bosch one and reset the code but it came back after driving. I am out of ideas now. Any thoughts on what it could be ? I can’t imagine that the catalytic converter has already gone bad.
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11-03-2023, 09:24 PM | #3 |
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Run the car and check the temp with an infrared senor gun (Amazon $20) before and after the cat.
If there is no temp difference the cat is fouled or bad. You can get a downstream o2 sensor spacer And that sometimes fixes the issue otherwise Change the cat |
Appreciate
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