what does a 409 code indicate on a 5.4 triton engine

Asked by owlman Oct 17, 2015 at 04:37 PM about the 2001 Ford F-150

Question type: Maintenance & Repair

1 Answer
3,475

Steve answered 8 years ago

could be you DPFE also that's the sensor that has 2 hoses on it that goes to the egr tube

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