Would be interested in what you found out.
Not an Expert, but at first glance I would say leaking fuel injector, which would cause the WET spark plug AND a problem with an O2 sensor because it's getting washed in raw fuel. Dumping raw gas into the exhaust system can also eventually damaged the catalytic converter. It will also cause rough idle and running. Has your mpg gone up?

 

I have a 2005 dodge ram 2500 5.9 Cummins 6 speed manual 4x4. I recently ran into an issue where I turn my key and none of the gages needles move. They all stay at zero or low etc. When I clutch and turn the key to start the truck tries to start but doesn't turn over and run. Just keeps trying to start. I checked all my fuses and relays in the fuse box and they are good. I did the odometer c code trick thing and received 5 c-codes. A4, A5, AA, AC, and AD. I'm thinking something is shorted out? I have no idea what to do. Any help is appreciated.

 

There is a section of the forums for Ram trucks - yours in particular should go on the 3rd gen board but there’s a few other boards that might work too.

Perhaps a moderated will move this post for you, but here’s a link to the 3rd gen board - https://dodgeforum.com/forum/3rd-gen-ram-tech-65/

That said, if the engine is cranking slowly or not at all, it’s most likely the batteries need to be replaced or they’re not recharging due to an alternator issue; the cable connections are dirty or the cables need to be replaced; or the starter is going bad.

 

I have a 2002 Ramm 1500 SLT 2wd 4.7L. Theres 2 hoses that come from the solenoid and route to the EVAP system . My question is which one goes to the throttle body as well from a T?

 

I have a 1994 Dodge B350 Van with 5.9L. When I do the key dance I get a code 3955. I can't find this mentioned anywhere on the net. Any ideas?

 

I'd have to agree with GenGuy. Leaky injector sounds like exactly what's causing your O2 sensor failures. If that doesn't fix the problem, I would check MAF after that see if that fixes your misfire issue...

 

Did you ever figure out your problem? Im having a very similar one

 

So my charger has been idling like crazy first it’s high than low than back it has since stabilized since I have changed the….fuel pump, one O2 sensor, map sensor, spark plugs, fuel injectors, AIT sensor, MAF sensor, throttle body, egr valve and tube, air filter, oil filter, oil, both runner valves, and cleaned the upper intake manifold……even after changing all of that it still will loose power when driving, I can mash the gas it will sometimes shake like it doesn’t want to go, the rpm’s will be stuck at 2 an just jerk up an down I have been getting these codes an it says I’m running to lean…when I drive it honestly jerks as if it was a manual an I shifted bad but only when I step on the gas….I have also noticed the car does this when it is warmed up an has been idling for a while. Pleaseeeee any one with any info or can help, I’m tired of spending money chasing a ghost and this is my only car right now.

 

have you check the idle air control valve???. That’s what it sounds like to me.

 

Understanding correctly, both upstream O2 sensors on both sides before the catalytic converter were having issues. Was an exhaust manifold leak ever checked? I had that exact problem on a coupe I used to own. I spent almost three weeks, working with the experienced mechanic on the issue. After replacing the exhaust manifold, no more leaks, no more check engine light.