Is it my MAF Sensor?

MazdaDriver9

Member
:
Mazda CX-5
I've seen similar post, but, my codes don't exactly match. So, I was driving my 2013 CX-5 (approx 50k miles) with no known issues when all of the sudden I felt a thump, bang and almost stalling. Solid CEL, TCS and TPMS lights came on. Car bucked and tried to stall on acceleration even after a restart. On the third restart, car drove 3 miles without issue. I bought an OBD scanner. Can anyone give me input on what this is telling me? I'm hoping the MAF sensor that I ordered will be the fix. Am I on the right track? Thank you!

OBD-IIOBD-II
DTCs: 8
----------------------------
P0102 [0x0102]
Mass air flow (MAF) sensor/volume air flow (VAF) sensor - low input
Status: Confirmed
----------------------------
P061B [0x061B]
Engine control module (ECM), torque calculation - performance problem
Status: Confirmed
----------------------------
P0102(00) [0x010200]
Mass air flow (MAF) sensor/volume air flow (VAF) sensor - low input
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested
----------------------------
P061B(00) [0x061B00]
Engine control module (ECM), torque calculation - performance problem
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested
----------------------------
U0442(00) [0xC44200]
Invalid data received from ECM/PCM B
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
----------------------------
P013A(00) [0x013A00] Archive (inactive)
Heated oxygen sensor (HO2S) 2, bank 1 - slow response rich to lean
Status: Test failed since last DTC clear, Test not completed during this operation cycle
----------------------------
P0303(00) [0x030300] Archive (inactive)
Cylinder 3 - misfire detected
Status: Test failed since last DTC clear, Test not completed during this operation cycle
----------------------------
P0571(00) [0x057100] Archive (inactive)
Cruise control/brake switch A - circuit malfunction
Status: Test failed since last DTC clear
============================
Engine control unitEngine control unit
DTCs: 5
----------------------------
P0102(00) [0x010200]
Mass air flow (MAF) sensor/volume air flow (VAF) sensor - low input
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested
----------------------------
P061B(00) [0x061B00]
Engine control module (ECM), torque calculation - performance problem
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested
----------------------------
P013A(00) [0x013A00] Archive (inactive)
Heated oxygen sensor (HO2S) 2, bank 1 - slow response rich to lean
Status: Test failed since last DTC clear, Test not completed during this operation cycle
----------------------------
P0303(00) [0x030300] Archive (inactive)
Cylinder 3 - misfire detected
Status: Test failed since last DTC clear, Test not completed during this operation cycle
----------------------------
P0571(00) [0x057100] Archive (inactive)
Cruise control/brake switch A - circuit malfunction
Status: Test failed since last DTC clear
============================
Transmission control unitTransmission control unit
DTCs: 1
----------------------------
U0442(00) [0xC44200]
Invalid data received from ECM/PCM B
Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear
============================
ABS control unitABS control unit
DTCs: 2
----------------------------
C0089(64) [0x408964] Archive (inactive)
TCS Disable Switch
Status: Confirmed, Test failed since last DTC clear, Test not completed during this operation cycle
----------------------------
U0401(00) [0xC40100]
Invalid data received - engine control module (ECM)
Status: Test failed, Test failed (current drive cycle), Confirmed, Test failed since last DTC clear
============================
 
I had to laugh when I read this. I had a '13 (sold it 6 years ago to downsize to a Mazda 3) that threw the same code right at about 50k miles. All the histrionics you describe with the dash lights and drivability problems is what' known as "limp home mode". It's the ECU's way of preventing serious damage to the engine. For starters, you don't just start throwing parts at the problem when something like this happens. MAF sensors get dirty over time and the proper response is to clean them along with the throttle body with (wait for it!) MAF cleaner. If and only if that fails to solve the problem should you replace the sensor.
 
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