Po475 trouble code

Reply Subscribe

Thread Tools

Search this Thread

Oct 8, 2016 | 02:57 PM

hondamxr

Thread Starter

Junior User

Joined: Apr 2011

Posts: 65

Likes: 0

Po475 trouble code

I'm trying to get my truck smogged and having problems w/po475. A friend of a friend said it was the DFPE sensor. So I bought one for $120 bucks but can't find where it goes. On YouTube it is only listed for F150's and gas motors it seems. I have a 00 f350SD 7.3, do I even have a DFPE and if so where is it located. Any info would help.
Thanks

Oct 8, 2016 | 03:07 PM

coax9952

Laughing Gas

Joined: Aug 2014

Posts: 1,020

Likes: 9

From: Washington State

Never heard of it, and I would NEVER blow 120$ on the friend of a friend.....what's it supposed to be?

Oct 8, 2016 | 03:17 PM

hondamxr

Thread Starter

Junior User

Joined: Apr 2011

Posts: 65

Likes: 0

Po475

He even had a print out on how to clear the code after it's replaced? I looked it up and it is for po471 code and something like an egr problem. . Do diesels have egr valves?

Oct 8, 2016 | 03:23 PM

coax9952

Laughing Gas

Joined: Aug 2014

Posts: 1,020

Likes: 9

From: Washington State

Nope, not on a Diesel.....What did you use to read your codes? most off-the-shelf scanners don't work on our trucks.

Oct 8, 2016 | 04:46 PM

mueckster

Lead Driver

Joined: Jun 2003

Posts: 8,298

Likes: 25

From: Damon (South East Texas)

P0475 is also a code for a 7.3 diesel. It refers to a problem with Exhaust Back Pressure Solenoid and/or its wiring.
KB1 DIAGNOSTIC TROUBLE CODE.docx

Oct 8, 2016 | 05:52 PM

coax9952

Laughing Gas

Joined: Aug 2014

Posts: 1,020

Likes: 9

From: Washington State

Yeah, that's what my book says. I was hoping his friend told him what the acronym meant. or at least give him an idea...

Oct 10, 2016 | 07:46 AM

Tugly

Hotshot

Joined: Jan 2011

Posts: 18,849

Likes: 179

From: Puget Sound

You may need to pull the Exhaust Back Pressure Sensor and clean it.

Using a code reader and advice of a friend of a friend on a Jurassic diesel is dubious at best - and very expensive at the worst. You are in the right place now - the "collective" knows how to troubleshoot these rigs down to the individual component.

If you have a smart phone or other portable device, you may want to click on the OBDII tools in in my signature.