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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 05-13-2013, 06:04 PM   #1
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Join Date: May 2013
Location: San Diego
Posts: 38
My Ride: E46 S54 SALOON
BMW P1192 code fix

I have found a way to fix this code that keeps appearing no matter what you do to the car, now it worked for me and passed California smog with no problems.

Well first it started after I had rebuilt my engine, the car ran perfect and I knew all the sensors were good, so I started reading online and I seem that a couple of people were having the same problem after spending thousands on their bmw's, so I got frustrated and this is what I did, the code has never came back after more than a thousand miles of driving and I passed the California smog test and I think that's the hardest state on emissions, so this is what I did.

Locate the Post-catalyst (after the cat o2 sensors) O2 sensor hardness are behind the engine, its easier to get to with the cabin filter housing off, the wires are long so they could hang on top of the engine.

Mark both of the after cat O2 sensors so you won't get them mixed up.

Now start the engine and with the engine running unplug the sensors and mix them up, YES plug the bank one in to the bank two and bank two in to bank one and let the engine run for a little and put them back together and do it again, then reset the code with a scanner, a Peake or an autozone one, I know this sound like you could mess something up, but it worked for me and it might save you a couple of hundred dollars, but only do it if your sure that all your sensors are good and the code just keeps coming back after a couple of miles of driving.
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Old 05-05-2017, 09:49 AM   #2
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Join Date: May 2017
Location: Atlanta
Posts: 1
My Ride: 325CI
Yes, it worked for me! So far so good. I've gone about 100 miles now and it has not thrown the code yet! I did think about doing that to see if my O2 was bad but wow, I'm very glad you figured this one out!
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Old 06-10-2017, 01:25 PM   #3
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Join Date: Feb 2012
Location: Las Vegas, NV
Posts: 789
My Ride: stick 325i
will try this, I have same issue on mines, and before I replace my O2 for new ones I will try this first
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