PO401 duramax code

Reply Subscribe

Thread Tools

Search this Thread

Jan 11, 2009 | 01:14 PM

justrunit

Thread Starter

10 Second Truck Club

Joined: Apr 2006

Posts: 32

Likes: 0

From: Bay Springs MS

PO401 duramax code

What causese this code on a 06 duramax superchips programmer and a magna flow ex and a cold air kit got egr vavle changed still coming on.

Jan 11, 2009 | 01:18 PM

EVILGMC

TECH Fanatic

iTrader: (47)

Joined: Oct 2008

Posts: 1,715

Likes: 0

From: 714

its an EGR related code.

http://www.duramaxforum.com/forum/to...h-gas-rec.html

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

Possible to swap an 8.1L into a GMT900 truck?

calsdad

8-Lug Truck Performance

Jun 14, 2023 11:07 PM

Please Help!!!

Pimpinpete

GM Engine & Exhaust Performance

Dec 22, 2017 08:13 AM

Misfire help

00loudchevy

Tuning, Diagnostics, Electronics, and Wiring

Dec 3, 2015 05:54 PM

P0446

Avalanche2002

Tuning, Diagnostics, Electronics, and Wiring

Nov 30, 2015 07:31 AM

issues after cam install

bearden86

GM Engine & Exhaust Performance

Nov 15, 2015 03:58 PM