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P0101AcuraAcura MDX HubAll Acura P0101Medium Severity

P0101 on Acura MDX: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0101 (Mass Air Flow (MAF) Sensor Circuit Range/Performance) specifically on the Acura MDX (2022–2026, 3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD)).

2022–2026
MDXSUV
Sensor Voltage Ref
0.1V – 5.0V Ref
MDX SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check P0101 On Another Acura Model:

1. Symptoms of P0101 on Acura MDX

When the Engine Control Module (ECM/PCM) on your Acura MDX (3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD)) logs fault code P0101, drivers commonly observe:

Check Engine Light (CEL) illuminated on Acura MDX (3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD))
Rough or erratic engine idle on Acura MDX (3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD))
Hesitation during acceleration on Acura MDX (3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD))
Black smoke or rich exhaust smell on Acura MDX (3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD))
Stalling after cold startup on Acura MDX (3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD))
Acura MDX OBD-II Port Location
The 16-pin diagnostic connector is located Driver side lower dash assembly. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Acura MDX

Historical warranty claims and technical repair bulletins for Acura MDX point to the following failure distribution:

55%
Dirty or contaminated MAF sensor hot wire (Acura OEM Part)
25%
Cracked intake air boot allowing unmetered air (Acura OEM Part)
12%
Damaged wiring harness or corroded connector pins (Acura OEM Part)
8%
Faulty MAF sensor unit (Acura OEM Part)

3. Step-by-Step DIY Repair Guide for Acura MDX

01
Inspect the Air Filter

Open the airbox and verify the air filter is not clogged with debris, oil, or moisture. on the Acura MDX equipped with 3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD).

02
Clean MAF Sensor with Dedicated Cleaner

Disconnect the electrical harness, remove the two Torx screws, and spray CRC MAF Cleaner directly onto the platinum sensor wires. Let dry completely. on the Acura MDX equipped with 3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD).

03
Check for Vacuum and Intake Leaks

Inspect the rubber intake tube for cracks or loose clamps between the sensor and throttle body. on the Acura MDX equipped with 3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD).

04
Clear Trouble Codes & Road Test

Use an OBD-II scanner to clear code P0101, then drive 15 miles to complete drive cycles. on the Acura MDX equipped with 3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD).

Other Common Fault Codes on Acura MDX

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Acura MDX:

4. Acura MDX P0101 FAQs

What causes code P0101 to trigger on a Acura MDX?

On the Acura MDX (3.5L i-VTEC V6 (290HP) / 3.0L Turbo V6 (Type S 355HP / SH-AWD)), P0101 is most frequently caused by Dirty or contaminated MAF sensor hot wire or Cracked intake air boot allowing unmetered air.

Where is the OBD-II port located on my Acura MDX?

On the Acura MDX, the 16-pin DLC diagnostic connector is located Driver side lower dash assembly. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Acura MDX with code P0101?

Yes, but fuel economy will drop and engine may hesitate under heavy load. Given that P0101 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.