Car pulled CEL scanny came up two codes both p2096 lean fuel trim post cat bank #1 does anyone have. Experience with this im thinking it means o2 sensor. But not sure

 

You got it.
O2 sensor.
Reset the code see if it comes back. If it does, fix it!

Believe bank 1 is drivers side.

 

Thanks which "bank" was which was a question I forgot to ask.

 

Been dealing with this for a while 2096 2098 it can be alot of things check all vac hose on the TB , check and see if you have exhust leak , what i found and my code has been gone now for 10 weeks ,is i took the TB off cleaned good and clean the rubber boots real well and this is a good time check all hose ,,if you have any Vac leaks at all it will give this code , I would do this frist it may save some $$$$$$$ Good Luck

 

Sorry to be dumb, but what is the "TB"?

 

Throttle Body.

 

i've been getting 2096 lately too and after replacing both downstream sensors, it stills comes up. i have 114,400 miles. i've been changing out parts intended to wear anyhow so it doesn't bother me that the sensors are now new. but this narrows it down to a vacuum hose somewhere....and i may have pinpointed the cause. the small hose that goes between both air valves at the top of the engine is hard, flaky, and simply rubbing your finger along it turns your fingers black. i would say this hose has rotted and probably has many tiny holes/cracks in it causing too much air to get sucked in and resulting in a lean mixture. waiting for confirmation of this from other, more experienced, members. if they agree that the hose is bad, i will change out and hopefully put this to bed.

 

if you aren't hearing the leak, hard or cracked hoses aside, it's probably something else. It takes a significant amount of air to throw the code. A pin hole probably won't throw it...

 

i hear a slight hiss, but i cant pinpoint it exactly with the clicking of the valves and overall engine noise. the hiss seems to come more from the right side of the engine though (standing in front looking back).

 

Could not hurt to change out , if still get the code try cleaning the rubber boots around the TB there should be two on the TB, this may be a good time to clean the TB and check the O ring on the TB , Hope this helps ,

 

the car had an induction done at the dealer when i took it in back @ 100k where they were supposed to also service the TB. i will get back there and check it out for any buildup.

 

i've ruled everything out that i could check. took it to the dealer today and they said it was the right cat that was out. makes sense since its older than the left (warranty replacement). sooo...now its time to see what can be done to bring down the $1584.00 quoted price to fix it.

 

2005 Chrysler Crossfire Eastern Catalytic Converter - Direct Fit 49-State Eastern Catalytic Converters

 

LOL. I love you guys. thanks

 

bank 1 is passenger side. dealer confirmed the problem was on the passenger cat with my car. makes sense being the first chamber is on the left side of the engine.

 

I've been doing some reading on what would cause the cat to fail. I've read things saying it should never fail, others saying it eventually wears out. The dealer says they eventually breakdown. Anyone know what the deal is? I ordered the new cat yesterday and will inspect the old one when I take it out to see if I can determine the cause from there. If there's something going on with my engine, I need to address it because I know that will kill the cats. But are they really supposed to "never" fail?

I've got just under 115,000 miles and a friend had to replace her cats around the same time (although due to MAJOR engine issues, misfires, oil leaking in cylinder 1, rich mixtures, etc.).

 

Okay everyone, here is the outcome of this little adventure. P2096 came up a few weeks ago out of the blue saying the issue was in bank 1 downstream. After changing out both O2 sensors (not knowing which side was bank 1), the problem remained. After the dealer diagnosed and quoted $1600 to replace the passenger side front catalytic converter, I took it home, ordered the part and swapped out the cat. 2 days and 250 miles later, the light turned off! Hence P2096 can be more serious than just a bad sensor. Still investigating to determine the cause of the first cat failure. It doesn't have any external physical damage so I am going to continue checking the engine for problems to make sure it's in good shape.

Thank you everyone for your insight on this.

For those who ever search for bank info in the future, bank 1 is passenger side. 100% without question.

 

If your cats are getting too hot, that can cause them to fail prematurely...In all honesty, cats are suppossed to last the lifetime of the vehicle...If it failed, something else caused it to go bad...My guess would either be something with the secondary air, since that causes the cats to heat up quicker or your O2 sensors not switching properly...I really question if that cat is bad or that it might be something more simple like O2 sensors like stated in earlier posts...I'm curious to see how many Crossfire owners have had to replace their cats...I have a 99 Sebring Coupe with 240k and it has no problems passing emisions tests.

 

i drove several hundred miles after swapping the sensors and the light remained. so if the sensor(s) were faulty, i would think changing them would have fixed it.

would you be able to go into more detail about what the the 'secondary air' is? i am not sure what that is and would like to do what i can to check for any problems there.