2006 Lincoln LS ls engine code p2195

Have you cleared the code with a scanner? As far as the code, that indicates there is a lean mixture. Most times, the code is set as the result of a vacuum leak. Have you checked for that?

Yes I have clear the code several times, the car is running fine no problem with the catalytic converter no dark smoke no written egg smell.once in a while I hear a little leaked inside the engine

since the light has come back on, there must still be a problem. Have you checked for vacuum leaks? You mentioned that you hear a little noise from the engine every once in awhile. Can you describe the noise?

Yes, i have clear the check engine light several times. I think there is a small air leaked coming from under the manifold,it sound like a hose is leaking air

That would be the problem. A vacuum leak will set this code and cause it to run lean. Are you able to locate the source of the noise?

I sound like it is coming from under the manifold like a on air leak releasing air

Check for an intake manifold leak, and check the rubber vacuum hoses for damage or if one is disconnected.

Thank you for your answer, even doe I still haven't get my mechanic to check for a vacuum leak. But I just realized that every time I put the car in gear or park the rpm gauge rise and all over the place, I still have the p2195 check engine code. And I seem that the car is still running lean or rich

I replaced all 4 oxygen sensor and 8 new coils, new spark plug, but the car is still running lean and bank 1 stuck sensor and bank 2 stuck bank sensor

That makes sense. It will continue to run lean if there is a vacuum leak. Also, a vacuum leak can affect the engine idle speed. There are other things that can cause the idle issues, but since you believe there is a leak, chances are that is the problem.

Is there any other problem that could cause the car to run lean on 02 stuck bank sensor and cause the p2195 engine code? I replaced most of the parts like new oxygen sensor, new spark plugs, new coils and a new air intake

And where do I find the vacuum leak, is it hard to find because my car is the 8 cylinder 3.9 can I do it by myself

I would think it is where you hear the noise from

Thank for that answer but the car start to overhead and if sound like all the sound is trapped in the engine and it hesitate when driving it, sound like the muffler is not blowing nothing everything thing trap inside. And the steering also vibrate and the whole front is shaking

Now am thinking that it could be the catalytic converter because the car hesitate and it really get hot like 240 degrees

Check to see if the converter is getting red hot when the engine gets hot. If it does, it's plugged.

Yes the catalytic converter is red hot even when am entering the car u could feel the hot air coming from under the car by the drive door

The car overhead when it is in park and soon as I step on the gas the gauge return back to normal, and when the heat is on in the car the remainder on normal unit I turn off the heat it start to overhead

Here is a picture I send u

The first thing I am concerned about is the catalytic converter. If it is red hot, it needs replaced. Sorry, I couldn't open the pics you sent.

The car overhead but when I turn on the heat the gauge return back to normal

The heater core acts as a small radiator and will help cool the engine. So that makes sense. Is the catalytic converter still running red hot? Have you tried disconnecting the cat to see of the engine runs correctly?

No I haven't, I really don't know what is wrong with it but am hoping it is not the catalytic converter.the car overheat when it is idling and sometimes when I squeeze the gas pedal the gauge return back to normal and even when I turn the heat on the gauge return back to normal.it take a long time before it start to overheat sometimes 30-45 minutes before it start to overheat.

Same engine code p2195 no change, the sound fine until it start to overheat. I bleed it off just incase air is in the line and add coolant. These is no leave of antifreeze. And the radiator in new thermostat new with the complete housing. And new transmission cooler

The heat inside the car is working even when u go into the engine u can hair the heat and the a/c is also working because it blowing air hot because it need to be gas up

Okay, we need to start over. I really believe you have two different problems. The trouble code, P2195 - 02 sensor signal lean Bank 1 sensor 1, leads me to believe there is a vacuum leak. It is common for vacuum leaks to cause this code condition. Most commonly the PCV valve hose rubs through or one of the other elbows or plastic vacuum hoses that Ford has used develops a leak. Also, a MAF cleaning with a throttle body cleaning may help for this condition

The overheating, I feel is something separate condition. Are the cooling fans coming on? When you drive at highway speeds, does the engine ever over heat?

Yes it does overheat on high speed and intended to stop when I turn the heat or a/c on

As for the p2195 engine code I give up because I replaced all 4 oxygen sensor 8 new coils and new spark plugs

Try a little test for me. With the engine cold, remove the radiator cap and start the engine. Does any coolant shoot out?

Yes it does

If coolant shoots out when the engine is cold, that indicates that compressed air is getting into the cooling system. It sounds like a bad head gasket. That would cause an overheating issue.

Yes when i turn off the car u can hear the coolant sucking in the radiator hose

Hi, I have the same problem with my 2006 Lincoln ls V8 the car is idling very rough and stall every time I stop on the car is throttling. The muffler is backfiring is like nothing I ever seen