P015B Diagnostic Trouble Code Discussion for January 2025
Delayed response rich to lean B1S1
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| Help Request | Posted | |
| 2018 Chevrolet Suburban Premier 5.3L MIL Lamp on VIN: 1GNSKJKC5J P015B: Delayed response rich to lean B1S1. ... to look at this. Vehicle is my wifes car, she brought it in last night due to a MIL that just illuminated. I found a P015b code for delayed O2 B1S1 response. I checked fuel trims, LTFT was -22 on both banks. I removed engine oil fill cap and LTFT went... |
January 08, 2025 | |
| 2018 Chevrolet Suburban Premier 5.3L MIL Lamp on VIN: 1GNSKJKC5J P015B: Delayed response rich to lean B1S1. ... to look at this. Vehicle is my wifes car, she brought it in last night due to a MIL that just illuminated. I found a P015b code for delayed O2 B1S1 response. I checked fuel trims, LTFT was -22 on both banks. I removed engine oil fill cap and LTFT went... |
January 18, 2025 |
