2011 5.7 Hemi Eco mode not working

[douellet20111500]

Hello everybody,

first time visitor to a forum and hoping someone here can tell me why my eco mode in my 2011 Ram stopped working. i have been getting P0420 codes for a little while and ordered all new O2 sensors and hopefully that will solve the code issue but i am wondering if the eco mode has stopped functioning for that reason. Any help or advice would be muchly appreciated

Thanks in advance.

 

[RamDiver]

Have you looked for an intake or exhaust manifold leak yet. There are several other potential causes of this DTC.

Using a parts cannon approach can get very expensive and often prolongs a simple fault.

P0420 Code: Meaning, Causes & How To Diagnose It Like A Pro

P0420 is one of the most common error codes. This guide applies to most vehicles and explains what the code means, what causes it and how to fix it.

mechanicbase.com

And, to Ram Forum.

.

 

[douellet20111500]

Had exhaust manifolds changed out and did recently check for vacuum leaks and intake manifold as well but nothing. Pretty frustrated with this one but like i said hopefully the O2 censors will fix the issue.

 

[Jeepwalker]

How many miles on your truck btw?

 

[RamDiver]

Had exhaust manifolds changed out and did recently check for vacuum leaks and intake manifold as well but nothing. Pretty frustrated with this one but like i said hopefully the O2 censors will fix the issue.

Did the problems begin soon after the exhaust manifold work?

If yes, this might be more than a coincidence.

And was this work completed by a professional?

.

 

[Wild one]

Hello everybody,

first time visitor to a forum and hoping someone here can tell me why my eco mode in my 2011 Ram stopped working. i have been getting P0420 codes for a little while and ordered all new O2 sensors and hopefully that will solve the code issue but i am wondering if the eco mode has stopped functioning for that reason. Any help or advice would be muchly appreciated

Thanks in advance.

If you have a code,it won't go into mds/eco mode