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Nissan fuel trim/fuel control question
I get an 05 Altima in with a check engine light and customer states fuel mileage has dropped significantly. Has a P0171. I look at the fuel trims and LTFT is 129 at idle and cruise. Checked fuel pressure - 53psi ok. MAF reading seems to look normal and the loa... Login to read more. 
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| Engine | 2.5 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2005 Nissan Altima S 2.5L
| Engine | 2.5 L |
| Trans | 4-speed Automatic (Electronic) |
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