How to clear permanent DTC on 2016 limited ?
Hello everyone,
I disconnected my mas airflow sensor to check the air filter. Now I have P0102 stored as permanent. I cleared the check engine light, but the permanent won't go away. I already drove the car for 30 miles. It's still in there. I have also tried disconnecting the negative battery terminal. That did not help either. Any idea what could be wrong? Thanks |
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Here’s some general info on your P0102 code: P0102 Mass Air Flow (MAF) Circuit Low |
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The time to complete 15 warm-up cycles and drive 200 miles is reasonable for vehicles to complete the self-diagnostic tests. In fact, most vehicles will complete the self-diagnostic tests well before this maximum limit is reached. The 15/200 limit is being established to prevent undue inconvenience to motorists who are trying to comply with the Smog Check Program requirements but are having trouble getting specific monitors to run to completion and ready for testing. |
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The MAF is part of the emission control loop so it probably does need a drive cycle to clear it. But you need to address the problem that caused it to be set in the first place. Check that connector. Make sure the air filter is OK and the lid is closed properly. Maybe you do have a dirty MAF that needs cleaning. Then drive. Sometimes hitting the specific sequences in the drive cycle is tricky and it does take a long time and many miles to complete it. If you’re in a hurry to get ready for a smog test you may have to research the drive cycle parameter profiles and follow them exactly. I did this for my 3rd Gen. |
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