P0171

TEIRA

MEMBER
1999 FORD TAURUS
6 CYL
FWD
AUTOMATIC
72,255 MILES

I have the Service light on and the codes I was givin was MIL DTC P0174, Stored Codes P0171, and Pending Codes P0401. On October 26th I chatted with BMRFIXIT the first time the codes came up. So I checked for vacum leaks and found none and I replaced the MAF Sensor. This time I got the same first two codes and another one. Can anyone help me.

3 Replies

BMRFIXIT

MECHANIC
19,053 POSTS

Hello again
p0401 is an EGR with low flow
check DPFE sensor and its hoses
check EGR operation
p0171 and p0174
need to have it check for vacuum leak have to use a smoke machine

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Friday, November 27th, 2009 AT 6:09 PM

TEIRA

MEMBER
5 POSTS

Hi.
I am a female with a little bit or what I thought was a enough about car engines, but I was wrong. Is there any way you could please break down what you just said. You lost me with all those letters. Also there is no other way of doing that test without smoke? Lo on funds. Thank you.

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Saturday, November 28th, 2009 AT 10:57 AM

BMRFIXIT

MECHANIC
19,053 POSTS

Delta Pressure Feedback EGR (DPFE) Sensor (3.0L 2V)Mounted on right front of intake manifold.

Delta Pressure Feedback EGR (DPFE) Sensor (3.0L 2V FFV)Mounted on right front of intake manifold.

Delta Pressure Feedback EGR (DPFE) Sensor (3.0L 4V)Mounted on right front of intake manifold.

Delta Pressure Feedback EGR (DPFE) Sensor (3.4L SHO)Mounted on right front of intake manifold.

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Saturday, November 28th, 2009 AT 5:18 PM