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code p0401 comes up on my scan

(1999 Ford Taurus)
in Salem, NJ on May 14, 2010
how much would it cost to fix the code p0401
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Popular Answer
on May 28, 2010
If I'm correct the 410 code has t do with the EGR system check voltage on the connection of the DPFE SENSOR, you shoud have about 5 volts going in and about 3 volts coming out. had tha problem could not get to pass inspection till I decreased vacum to egr valve with small nail in line, after I did that my voltage came up to about 3 volts and the code cleared. Hope this helps
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