Simultaneous P1093 P1092 codes

ANAVABI

MEMBER
2004 BMW X5
3.0L
6 CYL
4WD
AUTOMATIC
150,000 MILES

Hi,
Would you please explain why I get these two codes simultaneously. Rich and lean at the same time!
If interested, please see the freeze frame below.
Thanks,

DTC that caused required freeze frame data storage P1092
Fuel system 1 status CL
Fuel System 2 status CL
Calculated Load Value 39.6 %
Engine Coolant Temperature 122 °F
Short Term Fuel Trim -Bank 1 -0.8 %
Long Term Fuel Trim - Bank 1 6.3 %
Short Term Fuel Trim -Bank 2 -1.6 %
Long Term Fuel Trim - Bank 2 5.5 %
Engine RPM 2029 rpm
Vehicle Speed Sensor 30 mph
Ignition TimingA dvance for #1 Cylinder 24.5 ° IntakeA ir eTmperature 54 °F
Air Flow Rate from Mass Air Flow Sensor 0.06 lb/s
Absolute Throttle Position 14.9 %
Commanded Secondary Air Status OFF

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,702 POSTS

Hello,

Rich and lean codes are triggered by engine misfires. how is the engine running? Can you please shoot a quick video with your phone so we can see what's going on? that would be great. You can upload it here with your response. I would start with a compression test. here are two guides to help get us started:

https://www.2carpros.com/articles/how-to-test-engine-compression

and

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Please run down these guides and report back.

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Friday, April 19th, 2019 AT 12:46 PM

ANAVABI

MEMBER
16 POSTS

Thanks for your response.
I have absolutely no drivability issue at all. The car runs and accelerates as it should with lots of torque and power. What puzzles me is how come the codes are showing lean and rich on on the same bank simultaneously.
With no drivability issue, would you still recommend running those tests?
With Regards.

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Friday, April 19th, 2019 AT 2:43 PM

KEN L

MASTER CERTIFIED MECHANIC
47,702 POSTS

If it runs good you should be okay, I see the engine coolant temp way to low and the MAF sensor seems low as well, was the car at operating temperature and driving when you took the screen shot?

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Monday, April 22nd, 2019 AT 12:48 PM