Introduction To AFH45M-46 MAF sensor
Le AFH45M-46 is a high-precision hot-wire Mass Air Flow (MAF) sensor / air flow meter. It is designed for classic and commercial gasoline applications for Nissan.
This sensor is a direct-fit replacement interchangeable with part numbers 16119-73C00, 16119-73C0A, and 16119-73C01. It also cross-references the stamping AFH45M-46 / AFH45M46. This unit is widely utilized across renowned platforms, including for Nissan Sentra (B13 / B14), for Nissan Sunny III (N14 / Y10), for Nissan 100NX (B13), for Nissan Primera (P10 / W10), and for Nissan D21 Hardbody Pickup (2.4L KA24E).
The AFH45M-46 features a micro-machined hot-wire sensing bridge with integrated temperature compensation circuitry. It instantly calculates the true mass of intake air entering the engine cylinders, regardless of ambient temperature or elevation. The sensor delivers a highly accurate, linear analog voltage signal (0.8V to 4.5V DC) directly to the Engine Control Unit (ECU). This enables precise real-time modulation of the air-fuel ratio (AFR), fuel injection pulse width, and ignition timing.
This unit is ideal for automotive parts wholesalers, repair workshops, and rebuilders. It effectively resolves long-standing issues like rough idling, stalling, and throttle hesitation. It also fixes 2,500 RPM limp-mode rev limits and diagnostic trouble codes P0100/P0101.
Compatibilité des véhicules et liste de références d'équipement d'origine
Vous trouverez ci-dessous la liste complète des véhicules concernés ainsi que les références des pièces d'origine interchangeables, pour vous permettre de vous y retrouver rapidement.
| Vehicle Make | Modèle de véhicule | Années-modèles | Displacement |
|---|---|---|---|
| Nissan | Sentra | 1991–1999 | 1.6L |
| Nissan | 100NX | 1990–1996 | 1.6L |
| Nissan | Sunny III | 1990–1995 | 1.4L |
| Nissan | Sunny III | 1990–1995 | 1.6L |
| Nissan | Primera | 1990–1998 | 1.6L |
| Nissan | Primera | 1990–1996 | 2,0 L |
| Nissan | D21 Pickup / Hardbody | 1990–1997 | 2,4 L |
| Nissan | Pickup | 1997–2002 | 2,4 L |
| Nissan | Paladin | 2000–2005 | 2,4 L |
| OE Part Numbers | AFH45M-46 / AFH45M46 / AFH45-469520 / 16119-73C00 / 16119-73C0A / 16119-73C01 / 1611973C00 / 1611973C0A | ||
Wholesale Trading Terms
Quantité minimale de commande
Our AFH45M-46 mass air flow maf sensor, standard minimum MOQ is 10 pieces per model. We also accept mixed orders of different sensor models to meet your diverse sourcing needs.
Délai de livraison
For all in-stock mass air flow maf sensor, we can arrange shipment within 3-7 business days. For large-volume wholesale orders, the production and delivery cycle is approximately 15 to 20 business days.
Politique de garantie
AFH45M-46 mass air flow maf sensor, come with a 12-month OE-quality warranty. If any manufacturing defect occurs within the warranty period, send us a video and we’ll offer a free return or exchange.
Emballage
Par défaut, nous utilisons des cartons blancs neutres standard pour l'emballage. De plus, nous pouvons fabriquer des cartons de couleur personnalisée ou des emballages extérieurs à l'effigie de votre marque, en fonction de vos besoins spécifiques.
Transports
Nous travaillons en partenariat avec les principales entreprises internationales de messagerie, notamment DHL, FedEx et UPS. Nous sommes donc en mesure d'assurer des livraisons dans le monde entier, couvrant la quasi-totalité des pays et des régions.
Paiement
Nous acceptons divers moyens de paiement sécurisés, tels que les virements bancaires, PayPal et Western Union. Pour nos clients de longue date, nous pouvons également proposer des modalités de paiement flexibles.
Service OEM et de marque de distributeur
Nos emballages de marque peuvent être personnalisés en termes de dimensions, de matières premières et de procédés de conditionnement afin de répondre aux besoins des différents marchés régionaux. De plus, nous proposons des partenariats de production flexibles et fiables aux grossistes, distributeurs, acheteurs en gros et sociétés commerciales du monde entier. En résumé, nous proposons un service complet de marque de distributeur, comprenant la gravure laser de logos, la personnalisation des étiquettes de produits, la mise en sachets plastiques scellés et l'impression de boîtes en couleur.
Professional Installation & Handling Guidelines
- Disconnect Battery: Turn off the ignition and disconnect the vehicle’s negative battery cable to prevent electrical surges.
- Inspect Air Intake Duct & Filter: Ensure the engine air filter is clean and the air filter housing/intake tubing is free from oil blow-by, leaves, or grit. A dirty air filter will rapidly contaminate new hot-wire elements.
- Handle with Care: Never touch the internal hot-wire or sensing resistor with bare fingers or mechanical tools. Do not spray harsh throttle body cleaners directly into the sensing passage.
- Disconnect & Mount: Unclip the electrical wiring harness connector. Remove the mounting fasteners, install the new AFH45M-46 sensor ensuring the rubber sealing gasket sits evenly, and torque mounting screws securely.
- Reconnect & ECM Reset: Secure the wiring connector until the lock tab clicks. Reconnect the battery, start the engine, let it idle for 5–10 minutes to allow the ECU to relearn idle airflow trim values, and clear any historical OBD trouble codes using a diagnostic scan tool.
Centre d'aide
FAQ
Q1: How does the AFH45M-46 hot-wire mass air flow sensor function on for Nissan GA16DE and KA24E engines?
Le AFH45M-46 uses a platinum hot-wire element in the intake path. Its module keeps the wire at a constant temperature above ambient air. As airflow cools the wire, the circuit adjusts current to maintain heat. The resulting voltage (0.8V–4.5V DC) correlates to mass air flow. This lets the ECU calculate engine load, fuel pulse width, and ignition timing.
Q2: Why are classic for Nissan vehicles (Sentra B13, Sunny N14, D21 Pickup) notorious for MAF sensor solder joint cracking, and does this replacement solve it?
On older AFH45M-46 sensors, decades of heat, vibration, and solder oxidation cause micro-cracking at internal PCB joints (“dry solder joints”). This leads to intermittent open circuits. The engine may stall, jerk under acceleration, or enter a 2,500 RPM limp mode. Our new AFH45M-46 replacement uses reflow-soldered circuitry sealed in vibration-damping gel. This eliminates internal solder cracking.
Q3: What diagnostic trouble codes (DTCs) and engine symptoms indicate a malfunctioning AFH45M-46 sensor?
Q4: What wholesale order terms, MOQs, packaging options, and B2B warranty are provided for global importers?
Flexible MOQ: Minimum order starting from 10 units;
Packaging Options: Neutral secure packaging with anti-static foam, plain white/kraft boxes, or custom full-color private-label branded boxes with custom barcodes.
Traceability: Custom laser etching of your brand logo, batch number.
