Check engine light problem code
03-06-2006, 05:03 PM
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Check engine light problem code
Hello, a week ago, the check engine light on my car is on, so I use the OBD to test it, and then I erase the code to see if it come back again.
After a week, the check engine light come back again, and here's the code that I have after using the OBD II to scan it.
P0421
Warm Up Catalyst Efficiency Below Threshold (Bank 1)
What does this mean, and how do I fix this problem?
After a week, the check engine light come back again, and here's the code that I have after using the OBD II to scan it.
P0421
Warm Up Catalyst Efficiency Below Threshold (Bank 1)
What does this mean, and how do I fix this problem?
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