service engine code on 98 mercury sable


Old 07-25-04, 07:28 PM
Roeboat109's Avatar
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Join Date: Jul 2003
Location: Illinois
Posts: 502
service engine code on 98 mercury sable

code is 1401 dpfe efr circuit high input,what does that mean and what should i be looking for? would appreciate any help.
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Old 07-26-04, 03:38 AM
Desi501's Avatar
Join Date: Oct 2003
Location: Boynton Beach Florida
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The dpfe is an exhaust feedback sensor for the EGR system. They fail very frequently but what you have is an unusual code. It's a 3 wire 5v sensor. You first need to check the reference voltage to make sure it is at 5v. If you confirm that the reference voltage is 5v them I'd replace the sensor.

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