BRAND NEW *OEM Quality* mass airflow sensor (insert type) to suit Mitsubishi diesel models fitted with the 4N13, 4N14 and 4N15 engine families. Covers the Triton MQ, MR and KL series, Pajero Sport QE/QF, Outlander III diesel and ASX diesel. Stocked in Melbourne and dispatched express Australia-wide.

On Mitsubishi turbo diesel engines the MAF sensor works alongside the boost pressure system to calculate precise fuel injection quantity. When it fails the symptoms are immediate - black smoke on acceleration, limp mode, cruise control disabled, and fault codes stored. The 4N15 in the Triton and Pajero Sport is particularly sensitive to accurate air mass data for managing turbo response and fuel economy. This BRAND NEW direct-fit insert replacement restores factory performance without any wiring modification. Same-day dispatch from Cranbourne VIC.

TO SUIT

Suits Mitsubishi diesel models fitted with the 4N13, 4N14 and 4N15 engine families. The Triton covers all MQ (KJ0T) AWD from September 2015 and MR (KL1T) variants AWD and RWD from January 2015 onward. Also covers the Triton KK1T RWD cab chassis and utility. The Pajero Sport KS1W III DI-D 2.4L 4N15 is covered from August 2015 onward. The Outlander GF6W III DI-D 2.3L 4N14 is covered from August 2012 to December 2021. The ASX covers the GA6W 1.8L DI-D 4N13 from June 2010 to August 2013 and the GA8W 2.3L DI-D 4N14 from April 2013. Full year-by-year vehicle list in the compatibility table above.

FITMENT CHECK

This is an INSERT TYPE sensor - it fits into the original housing which is retained. Suits 4N13, 4N14 and 4N15 turbo diesel engines only. Confirm the Mitsubishi OEM part number on your existing sensor before ordering - the primary OEM numbers are 1525A021 and 1525A033.

OEM PART NUMBERS

MITSUBISHI: 1525A021
MITSUBISHI: 1525A033
DENSO: 197400-5200
DENSO: 197400-5210
DENSO: 197400-6160

OTHER PART NUMBERS

TRIDON: AFM-250
DENSO: DMA-0111
HELLA: 8ET009142-961
PIERBURG: 7.28342.17.0
NTY: EPP-TY-006
WAI: AM28010N

PACKAGE INCLUDES

1 x BRAND NEW mass airflow sensor insert. 5-pin oval connector. 12V operating voltage. Hot-wire sensor type. Installs into original housing - no housing replacement required. We recommend replacing the air filter at the same time as sensor replacement.

ABOUT THIS SENSOR

The mass airflow sensor on the Mitsubishi 4N15 2.4L turbo diesel engine is a hot-wire insert type sensor shared with the Toyota/Suzuki/Lexus platform. It sits between the air filter housing and the intake manifold and measures the volume and temperature of air entering the engine. The ECU uses this data to calculate precise fuel injection quantity and manage turbo boost response. On the 4N15-powered Triton MQ/MR and Pajero Sport, accurate air mass measurement is also essential for DPF regeneration management. This sensor is cross-referenced against Mitsubishi OEM 1525A021 and DENSO DMA-0111. Dispatched same day from Melbourne.

COMMON SYMPTOMS OF A FAILING MAF SENSOR

Check engine light - fault codes P0100 P0101 P0102 P0103 (MAF sensor circuit)
Black or grey smoke from exhaust on acceleration
Limp mode or reduced power - often triggered under load
Cruise control disabled
Poor throttle response and hesitation under load
Noticeably increased fuel consumption
Engine stalling at idle

[06/10 - 08/13] MITSUBISHI ASX GA6W DI-D (1.8L 4cyl 4N13 110kW)
[04/13 - 07/18] MITSUBISHI ASX GA8W DI-D (2.3L 4cyl 4N14 110kW)
[08/12 - 12/21] MITSUBISHI OUTLANDER GF6W III DI-D (2.3L 4cyl 4N14 110kW)
[08/15 ON] MITSUBISHI PAJERO SPORT KS1W III DI-D (2.4L 4cyl 4N15 133kW)
[09/15 ON] MITSUBISHI TRITON KJ0T DI-D (2.4L 4cyl 4N15 113kW)
[01/15 ON] MITSUBISHI TRITON KK1T D (2.4L 4cyl 4N15 133kW)
[01/15 ON] MITSUBISHI TRITON KK1T DI-D (2.4L 4cyl 4N15 133kW)
[01/15 ON] MITSUBISHI TRITON KL1T D (2.4L 4cyl 4N15 133kW)
[01/15 ON] MITSUBISHI TRITON KL1T DI-D (2.4L 4cyl 4N15 133kW)

Can I clean my MAF sensor instead of replacing it?

Yes - if the sensor is contaminated rather than electrically failed, cleaning with a dedicated MAF sensor cleaner spray can restore correct readings. Do not use brake cleaner or generic electrical contact cleaner as these leave residue that damages the sensing wire. Allow the sensor to dry completely before reinstalling. If cleaning does not resolve the fault codes, the sensor requires replacement.

What is the difference between a MAF sensor and a MAP sensor?

A MAF (Mass Air Flow) sensor directly measures the mass of air entering the engine using a hot wire element in the intake. A MAP (Manifold Absolute Pressure) sensor measures intake manifold pressure to calculate air density. Most modern engines use one or the other - some use both. Your vehicle service manual or OBD2 fault codes will confirm which sensor type your engine uses.

Will a faulty MAF sensor cause my vehicle to fail an emissions test?

Yes. A faulty MAF sensor causes the ECU to miscalculate fuel delivery, typically resulting in a rich running condition that increases CO and hydrocarbon emissions. Most roadworthy and emissions checks will fail a vehicle with an active MAF sensor fault code or visibly excessive exhaust smoke.

What are the symptoms of a bad MAF sensor?

Common symptoms include rough idle, hesitation or stumbling on acceleration, poor fuel economy, black smoke from the exhaust, and an illuminated Check Engine light. Your ECU may log fault codes P0100 to P0104.

Can I drive with a faulty MAF sensor?

You can drive short distances but it is not recommended. A faulty MAF sensor causes the ECU to run incorrect fuel mixtures, which can damage the catalytic converter and O2 sensors over time. Have it replaced as soon as possible.

How do I test if my MAF sensor is bad?

Use an OBD2 scanner to check for fault codes P0100-P0104. You can also use a multimeter or live data scanner to check the sensor output voltage against your vehicle's specification. A reading significantly outside spec confirms a faulty sensor.

What causes a MAF sensor to fail?

The most common causes are a dirty or contaminated sensing element (often from a missing or damaged air filter), oil contamination from an over-oiled aftermarket air filter, heat damage, or general wear over time.

Do I need to reset my ECU after replacing the MAF sensor?

It is good practice to clear any stored fault codes using an OBD2 scanner after replacement. Some vehicles will self-adapt within a short drive cycle, but clearing codes ensures the ECU recalibrates from a clean baseline.

Identification
SKU	AFM-250-Triton
Brand	Aftermarket OEM Replacement
Part Numbers
Part Number	AFM-250
Reference OEM Number	1525A021
Other OEM Numbers	1525A021, 1525A033, 197400-5200
Related Part Numbers	WAI: AM28010N, NTY: EPP-TY-006
Trade Part Numbers	HELLA: 8ET009142-961, PIERBURG: 7.28342.17.0
Product Specifics
Product Type	SENSOR
Sensor Type	Mass Airflow Sensor
Type	MAF Sensor
Number of pins	5-Pin
Connector Shape	oval
Housing Type	without housing
Length	68 mm
Compatible Makes	Mitsubishi
Fitment Type	Direct Replacement
Other Details
Note	Insert type - fits original housing. Suits 4N13 4N14 4N15 diesel.