Engine Light: Codes P0172 P0175
Thread Starter
Newbie
Joined: Sep 2014
Posts: 9
Likes: 0
From: Omaha, NE
CLS 63 S AMG
Engine Light: Codes P0172 P0175
So I modified my 2011 E550 4Matic with Kleemann Headers, a ECU tune, and a Magnaflow exhaust.
After driving it for a few days I got a engine light, I imagined it was ECU tune related. P0172: System too Rich Bank 1 and P0175: System too Rich Bank 2.
I'm not entirely sure what it means, but I'm guessing its related to the change in fuel mixture from the ECU tune.
THe light is annoying, is there anyway to override this code?
I also don't like the fact that having this issue causing a engine light forever will mask any actual significant engine light notification.
Any help would be appreciated.
After driving it for a few days I got a engine light, I imagined it was ECU tune related. P0172: System too Rich Bank 1 and P0175: System too Rich Bank 2.
I'm not entirely sure what it means, but I'm guessing its related to the change in fuel mixture from the ECU tune.
THe light is annoying, is there anyway to override this code?
I also don't like the fact that having this issue causing a engine light forever will mask any actual significant engine light notification.
Any help would be appreciated.
Super Member
Joined: Feb 2013
Posts: 580
Likes: 62
From: Maryland
2013 E550 4Matic
Take it back to the tuner and have them make adjustments, and specify they need to accommodate for the headers and exhaust. Not sure which order you had it all done, but they should've asked you about your mods before tuning it.
Thread Starter
Newbie
Joined: Sep 2014
Posts: 9
Likes: 0
From: Omaha, NE
CLS 63 S AMG
How much hp on your e550? I Renntech tune posts amazing returns.
