Normal/Abnormal CEL Codes on a Tuned S55

[jaysonz35]

I want to create this thread so we can all post up codes and help each other figure out what's "normal" and "abnormal."

I figure I'll go first:

ER DP's, JB4, MSR charge pipes, and Eisenmann exhaust currently installed.

Running map2 with 93 octane and so far these codes have showed up after about a hundred or so miles of driving:

102001 Air mass, plausibility -- Tuner code, ignore; NORMAL
102E11: No description found; not sure if this is normal
102901: No description found; not sure if this is normal
118001 Mixture ECU: mixture too rich; not sure if this is normal
118102: No description found; not sure if this is normal

Tune pros. Please chime in!

[Mike@N54Tuning.com]

102001, 102901 these codes mean the DME is seeing more or less airflow go by the MAF than expected. This is normally caused by an aftermarket intake system. It could also just be from really high power levels though.

102E11 means the MAF sensor is unplugged or damaged.

The other two 118 codes are mixture lean codes, normally caused by E85 mixtures.

Mike

[jaysonz35]

Thanks for contributing, Mike!

[M4RAUDR]

I've got two that are recurring - HEX Stage II Tune - No Cats - NO CEL for 20K miles, and now suddenly, I get:

P0036 - HO2S - Heated oxygen sensor 2 bank 1
P0056 - HO2S - Heated oxygen sensor 2 bank 2


I clear them and they return.

I've just continued to drive with the CEL - no noticeable difference in performance. I think these are definitely DP-related, as Sensor 2 is post-cat.

So, I'm not worried about them, but curious why they've showed up after 20K...





/

[Wheeliej]

I’m getting 102901 102001 102E11 after like 5k miles after putting MHD stage 2 tune downpipes and drop in filters on my M4 2015 just started happening also I feel like I just noticed that I hear a lot of intake noise on the front windshield definitely an intake noise but it sounds similar to when you have the a/c all the way up like a rush of air but I checked the charge pipes which are stock and they don’t seem to be leaking

[SOLIDM4]

Originally Posted by Mike@N54Tuning.com

102001, 102901 these codes mean the DME is seeing more or less airflow go by the MAF than expected. This is normally caused by an aftermarket intake system. It could also just be from really high power levels though.

102E11 means the MAF sensor is unplugged or damaged.

The other two 118 codes are mixture lean codes, normally caused by E85 mixtures.

Mike

I got this for the 1st time today, I cleared it and the car was driving normally with the Light one, so
102E11 means the MAF sensor is unplugged or damaged. so is this accurate?

[SOLIDM4]

Originally Posted by Wheeliej

I’m getting 102901 102001 102E11 after like 5k miles after putting MHD stage 2 tune downpipes and drop in filters on my M4 2015 just started happening also I feel like I just noticed that I hear a lot of intake noise on the front windshield definitely an intake noise but it sounds similar to when you have the a/c all the way up like a rush of air but I checked the charge pipes which are stock and they don’t seem to be leaking

Yea Today I got 102E11 with no info, the car was running fine. Idled fined hmmm weird stuff. I normally get the stupid FlAP/exhaust code.

[valenciaga_m4]

Originally Posted by Wheeliej

I’m getting 102901 102001 102E11 after like 5k miles after putting MHD stage 2 tune downpipes and drop in filters on my M4 2015 just started happening also I feel like I just noticed that I hear a lot of intake noise on the front windshield definitely an intake noise but it sounds similar to when you have the a/c all the way up like a rush of air but I checked the charge pipes which are stock and they don’t seem to be leaking

I have the same error codes and the same super loud "intake noise" that I don‘t know what it is. What was the solution for this? My charge pipes are aluminium, I doubt they are broken. But my boost pipe is still stock, maybe it is leaking now with the power increase?
I run BM3 Stage 2H with upgraded turbos.

[Shikari]

Originally Posted by valenciaga_m4

I have the same error codes and the same super loud "intake noise" that I don‘t know what it is. What was the solution for this? My charge pipes are aluminium, I doubt they are broken. But my boost pipe is still stock, maybe it is leaking now with the power increase?
I run BM3 Stage 2H with upgraded turbos.

Figure out what was causing the codes?