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Hammbone
07-07-2006, 03:53 PM
Could someone please help me with this code I have no idea wht it means and where to look to try and fix the problem.:confused: [27]
This is the code: P1400 Differential Pressure Feedback Electronic Sensor circuit Low Voltage

Any input is appreciated[cheers]

gordwould
07-07-2006, 03:56 PM
what year ford?

Hammbone
07-07-2006, 04:04 PM
what year ford?
It's a 2002 4.6 L

J20
07-07-2006, 04:41 PM
DPFE controls your egr ,my experiances with this code have 90% of the time led to me changing the sensor............find your egr valve and follow the small vacum lines to the dpfe make sure the lines are all connected, not kinked ect.if all looks well go get a new sensor and replace it............hope that helps

cheers[cheers]

waggie
07-07-2006, 05:22 PM
I agree....
(ford dpfe sensors suck)

Hammbone
07-07-2006, 06:41 PM
DPFE controls your egr ,my experiances with this code have 90% of the time led to me changing the sensor............find your egr valve and follow the small vacum lines to the dpfe make sure the lines are all connected, not kinked ect.if all looks well go get a new sensor and replace it............hope that helps

cheers[cheers]

Thanks I'll check that out

kootenaycat
07-07-2006, 07:44 PM
I agree with Brain, the hoses usually come off the egr pipe and run up to the DPFE which is normally aluminum (?), shiny/grey colour. Check the hoses for being plugged up, and check inside the ports on the sensor. OBDII can be a real pain because it monitors more stuff, but at other times makes it easier to diag.