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code P0401 egr flow insufficient keeps coming up changed egr valve twice 4.6l V8
1999 Ford F-150

Code P0401 egr flow insufficient keeps coming up changed egr valve twice 4.6l V8

(1999 Ford F-150)
need to pass emissions test
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on July 02, 2011
put a dpfe sensor on it. very common failure.

Roy
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General Diagnosis
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on July 02, 2011
put a dpfe sensor on it. very common failure.

Roy
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