CodeP040B
Thread Starter
Registered User
Joined: Mar 2005
Posts: 24
Likes: 0
From: Chilhowie, VA
CodeP040B
On my 08 I keep getting code P040b Exhaust Gas Recirculation Temperature Sensor 1 Circuit Performance I didn't know that smarty Jr me was not for a cab& chasse untill I done bought it so is this the reason I keep getting this code? and is there any thing to do to get rid of it? comes up about once every 2 week Thanks
Administrator / Severe Concussion Aficionado
Joined: Jul 2008
Posts: 5,491
Likes: 15
From: Home: Kaplan, LA - Pipelining In: Pecos, Tx
Only thing I can think of is to return to stock an reload. Also may want to update the Smarty if its not the newest version. Could just be a bug like the old "Catalyst Full See Dealer Now" issue I had on my 08. Smarty update cured it.