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Fuel trim and internal vacuum leaks
So I am working on a 97 F-150 5.4 liter . I have lean oxygen sensor codes . To be specific P1151- Bank 2 sensor 1 indicates lean & P0153 - Bank 2 sensor 1 slow response . So the first thing I look at is fuel trim data and yes we are indeed lean on bank 2 . So ... Login to read more. 
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| Engine | 5.4 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
1997 Ford F-150 5.4L
| Engine | 5.4 L |
| Trans | 4-speed Automatic (Electronic) |
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