SkankZ

I recently did a service B on my 2006 C230 Sport Sedan. I change the oil with Mobile 1 0W-40. I also change the oil/air/air condense filter.

Now two day later i received a check engine light. The codes are P2188 and P2190. I'm guessing the light came on when i turn the heater on? Since it was one of the possibilities .

I google the codes.. but it is leading me to two different possibilities.

The mileage on the car is almost at 34,000.

Thanks

e1000

check if you've seated the air filters properly after changing them. They should be snug, and the gasket around the filter should sit in the square hole for each opening.

SkankZ

Thanks for the reply.

Would this loose air filter be the cause for my car to idle funny in the morning? When I turn it on it sorta rev up a little then calm down.

e1000

It didn't do that before? That sounds normal to me.

SkankZ

Oh maybe haven't paid attention until now that the check light Is on

The rev this time.. It rev about 3-4 times by it's self then stop.

Yeah I'll definitely check up on my air filters.

ontmiss

That happened to me few days ago. Remove filters housing and put it back but make sure the rubber seal that goes to throttle body fits nicely.

webking1

~50K, my local dealer recommended to change the air filter. I did some research on youtube and found a video ( http://www.youtube.com/watch?v=TT6L9pPf2Fc ) on how to change it. I used K&N filter and it boost performance a bit I think. Make sure you secure the cover with the throttle body! If you don't secure your cover with the throttle body, dirty air could get in and the Engine Light will come on after less than 100 miles driven. If you get Engine Light on, bring it to AutoZone or Advance Auto Parts to check for free. You will likely get these codes P2188 & P2190 (Mass Air Filter -MAF) failure. All you need to do is to reseat it correctly and drive for about 100 miles. The Engine Light should go away by then. I've just experienced this. Dealer wants $800+!

jsohigian@yahoo

I recently have had the same problem where I took off the air filter housing to inspect the engine must not have put it back on right. Now I am getting these two trouble codes. So, I repositioned inspected it over the throttle body reattached the hose on the airfilter housing, cleared the codes and less than 40 miles later get the same codes again. I think when I initally moved it, and the codes came on it broke the mass airflow sensor somehow?

If anyone can suggest anything, that would be great. I am going to move forward on ordering the new sensor and installing it and see if that works.

Thanks in advance for your suggestions.

Jake

kluvsbenz

I did the same thing when I took the air filter housing off to change the plugs. Now I am getting these same codes-P2190 & P2188. I tried reattaching the air filter housing again. I know it isn't the air filter because I changed it earlier this year and didn't have a problem. The "Check Engine Light" only came up recently after I changed the spark plugs. My indy did mention mass air flow sensor so I am going to have him look at it.

kluvsbenz

***Update***

Just came back from my indy and he ran the Star diagnostic. He said it was the mas flow sensor like he told me over the phone. He wanted to order the part, labor. 400 bucks Not bad but no thanks. I told him to clean it and clear the codes. No problem. Charged me 120 bucks I'll take that. Next time I am going to clean it myself Sometimes that's all it is needed. FYI.

mike roth

What was the actual cure for P2188 & P2190?

mbragus

I just change my air filter and oil then this code P2188 came out ! What I did was I added a filter screen on the air filter , so now I took it out and drive it for the next few hours and wait for the outcome. Hoping that this will solve the problem.

raykar

Be sure to press in the four snug tabs of the dual filter housing. If the rear two (the ones nearest firewall) aren't seated then the mass air flow sensor housing has a weak seal with leaks. This will cause your "too rich bank 1/bank 2" codes. This usually happens when you change your air filters. Good luck.
MB 2006 C280

Tecladista 21

It's the EGR valve getting stuck with exhaust gunk. I changed MAF, MAP, ignition coils, air filters, intake gaskets, or injector ring, cleaning and injector test, until I got to the egr I disassembled it on bank 1 and 2. The one on bank 1 caught my attention because it was dirtier and in the open position. It is easy to know if it is open because air passes from one hole to another. I put w40 on both and washed them with degreaser for 40 min in an ultrasonic tub, it is the only thing that results when they are clogged since a superficial cleaning does not eliminate the problem (I had already cleaned them with a carburetor cleaner, without ultrasound and it had not given me account that bank 1 was open). When this is left open, it generates a rich idle condition since the air inlet is filled with exhaust gases and pushes oxygen, so the sensors detect that there is a rich mixture, and the fuel adjustments are triggered to negative values, throwing these two codes. I inform you since it took me 2 months to repair it and find the fault and I spent a lot of money on spare parts.