code p0401 is not the pressure sensor what else could be that i need to change the egr valve
Feb 16, 2011 at 7:39 PM
Code p0401 is not the pressure sensor ?
2001 FORD EXPLORER
JLSTKY7061
- MEMBER
- 2 POSTS
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MERLIN2021
- ✓ASE Certified Mechanic
- 17,250 POSTS
The P0401 code on a 2001 Ford Explorer indicates "Insufficient EGR Flow."
Yep! Pull the egr off, clean the port under it all the way to the throttle plate, I use a length of steel coat hanger...put it all back together, reset the codes, if light comes on again, replace the EGR position sensor, that's the one the two small hoses from the exhaust plug into!
Here is a video to help test the EGR and the location in the image's below
https://youtu.be/DqUCbbKdWf4?si=EtixUFFIB5jdETwM
Check out the images (below). Let us know how it goes
Yep! Pull the egr off, clean the port under it all the way to the throttle plate, I use a length of steel coat hanger...put it all back together, reset the codes, if light comes on again, replace the EGR position sensor, that's the one the two small hoses from the exhaust plug into!
Here is a video to help test the EGR and the location in the image's below
https://youtu.be/DqUCbbKdWf4?si=EtixUFFIB5jdETwM
Check out the images (below). Let us know how it goes
Images (Click to enlarge)
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Feb 16, 2011 at 7:48 PM
if i just buy a new that i need to still clean it up ?
Feb 16, 2011 at 8:47 PM
MERLIN2021
- ✓ASE Certified Mechanic
- 17,250 POSTS
do not replace parts until you clear the port out. Y out might not need parts.
Feb 17, 2011 at 4:46 PM
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