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Re: Fuel Trim Confusion
The answer was in the fuel supply system. This Ford has a module driven fuel pump that operates at two different speeds with a fixed fuel pressure regulator. There is no fuel pressure sensor in the rail. On the low speed which is used at low loads the fuel pre... Login to read more. 
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| VIN | 1FT8W3B61C |
| Engine | 6.2 L |
| Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2012 Ford F-350 Super Duty XL 6.2L
| VIN | 1FT8W3B61C |
| Engine | 6.2 L |
| Trans | 6-speed Automatic (Electronic) |
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