need some HELP.....FAST
Thread Starter
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Member
Joined: Nov 2006
Posts: 84
Likes: 0
From: Las Vegas, NV
need some HELP.....FAST
My truck
and some codes
AND ITS NOT PASSING SMOG AND I HAVE TILL SATURDAY TO GET HER DONE
i got 3 codes off the reader P0161 P0402 and P0455 i know what they are but i need to know how to fix em if anyone could please lend a hand
that would be awesome
and some codes
AND ITS NOT PASSING SMOG AND I HAVE TILL SATURDAY TO GET HER DONE
i got 3 codes off the reader P0161 P0402 and P0455 i know what they are but i need to know how to fix em if anyone could please lend a hand
that would be awesome
Senior Member
Joined: Jan 2008
Posts: 473
Likes: 0
From: Kansas City,MO
P0161 is on passenger side tailpipe AFTER the cat. Check the wiring make sure its not cut, worn, corroded. If all the wiring looks good, no chafing then when was the last time the O2 was replaced? I would consider getting a replacement they are around $70
P0402 is in relation to the EGR valve. If you do a google search for images and type F150 EGR value you will see what it looks like if you are not familiar with it. Clean this thing out being carful of the diaphragm inside. Next check the DPFE sensor. Got a pic of it here: https://www.f150online.com/galleries...4889-92125.jpg
This is the second culprit for that code. This honestly may be in relation to the first code.
P0455- Looks like a couple of things to try here. It's directly related to the 0402 and if you clean the EGR ports and replace DPFE Sensor. Also another thing to check would be under the battery and battery try is the vacuum reserve tank. Check it for holes as well.
Other more knowledgeable members may chime in but after doing a few quick searches this is the information I have found. I hope this helps you.
Sean
P0402 is in relation to the EGR valve. If you do a google search for images and type F150 EGR value you will see what it looks like if you are not familiar with it. Clean this thing out being carful of the diaphragm inside. Next check the DPFE sensor. Got a pic of it here: https://www.f150online.com/galleries...4889-92125.jpg
This is the second culprit for that code. This honestly may be in relation to the first code.
P0455- Looks like a couple of things to try here. It's directly related to the 0402 and if you clean the EGR ports and replace DPFE Sensor. Also another thing to check would be under the battery and battery try is the vacuum reserve tank. Check it for holes as well.
Other more knowledgeable members may chime in but after doing a few quick searches this is the information I have found. I hope this helps you.
Sean
Thread Starter
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Member
Joined: Nov 2006
Posts: 84
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From: Las Vegas, NV
Hey thanks alot and as for the EGR valve i just bought an $89 brand spankin new one and that code popped right back up but i well checking the DPFE sensor next thats for sure, do you happen to know how long those last, i just replaced it last year sometime. Thanks for the help again
Senior Member
Joined: Jan 2008
Posts: 473
Likes: 0
From: Kansas City,MO
Try that canister under the battery / battery tray.See if its rusted or has an holes in it. Those two codes did bring up results about that leaking. I'm still pretty convinced with the EGR/DPFE area though. I have battled that for months straight. It's such a PITA type of system.
Senior Member
Joined: Jun 2007
Posts: 5,522
Likes: 6
From: Utah
last time I had the p402 code it was because one of the tube leading into the exhaust amnifold was pluged. EGRs rarely fail but its the first thing autozone tells you is wrong.
