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Thanks for the reply. From what I have found on the codes: 3808 - fuel metering unit: setpoint of metering unit in idle mode not plausible 3293 - fuel metering unit: maximum positive deviation of the rail pressure exceeded

2014 New Holland T4.75 Last week, I got a 3808 fault code. I was 50 hrs shy of a fuel filter service, so I changed them out and checked the prefilter. After replacing the filters, it ran good for about an hour and then gave me a 3293 fault code. Both codes are related to the fuel metering...