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From: lovepeteypablo1 on 17 Mar 2010 11:05
On Mar 16, 8:17 pm, m6onz5a <corv...(a)comcast.net> wrote:
> On Mar 15, 11:27 am, lovepeteypab...(a)yahoo.com wrote:
>
> > Please can anyone help me! I have a 2005 Chrysler Sebring I recently
> > purchased. A few days after driving it off the lot the check engine
> > light came on. It gave a code of p0491 which reads as a Secondary Air
> > Intake System Bank 1. The Chrysler dealer I have been going to doesn't
> > know how to solve the problem either. Please help me. I have already
> > spent hundreds trying to figure out this problem.  I have been to
> > chrysler numerous time since 2/17/2010 and they have not been able to
> > figure out the problem. I have replaced a pcv valve, map sensor, cam
> > sensor, and now a pcm. All of which has not lead to an answer as to
> > why the check engine light will not go off and why it is giving this
> > code. Please help I am going broke over here!
>
> New O/2 sensors probably couldn't hurt.  Hopefully the converter isn't
> bad.   don't give up.. It's an emissions related issue. You can still
> drive it.
>
> Hey did you purchase it state inspected??????

They told me that this car has a California emissions system on it.
They believe that it is the valve because they checked it and it keeps
sticking. They said it was really hard to find it becuase this system
only comes on in the first 20-60 sec of starting the car and when its
cold out. So by the time I drove it to the service department the car
was warm and the system was off. So it is a emission issue and
although Illinois has different emission requirements the car would
fail because of the system that is on it. So the price to get the
problem solved is $410. So I have spent a grand total of $740.72
trying to slove this problem. I am not happy about this at all. Thank
Everyone! I Hope they have final found and solved the problem!
From: ben91932 on 17 Mar 2010 23:05

> The system checks for this code by momentarily allowing air into the
> exhaust manifold on that side, and watching for a change in the O2
> sensor readings.

2 random thoughts...
IIRC, that thing only runs briefly on a cold start. put our hand on
the pump and have someone start the car... you should feel it if its
pumping.
Also, I've been seeing allot of those air systems clog lately...
Remove the air delivery hose from the manifold and start the motor.
You should hear a putputput. If not, its roto-rooter time.
HTH
Ben
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