Introduction To AFH45M-46 MAF sensor
O 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.
Compatibilidade com veículos e lista de referências OE
A seguir, apresenta-se o âmbito completo de aplicação do veículo e os números de peça OE intercambiáveis, para sua consulta rápida.
| Vehicle Make | Modelo do veículo | Anos do modelo | Deslocamento |
|---|---|---|---|
| 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 | ||
Condições de Venda por Grosso
Quantidade mínima de encomenda
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.
Prazo de entrega
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.
Política de Garantia
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.
Embalagem
Por predefinição, utilizamos caixas de cartão brancas neutras padrão para a embalagem. Além disso, podemos produzir caixas de cartão com cores personalizadas ou embalagens exteriores com a marca da sua empresa, de acordo com as suas necessidades específicas.
Transportes
Temos parcerias com as principais empresas internacionais de entregas, incluindo a DHL, a FedEx e a UPS. Por isso, podemos organizar envios para todo o mundo, abrangendo quase todos os países e regiões.
Pagamento
Aceitamos diversos métodos de pagamento seguros, tais como transferências bancárias, PayPal e Western Union. Para clientes de longa data, também podemos negociar opções de pagamento flexíveis.
Serviço de OEM e marca própria
As nossas embalagens de marca podem ser personalizadas em termos de tamanho, matérias-primas e processos de embalagem, de modo a satisfazer as necessidades dos diferentes mercados regionais. Além disso, oferecemos parcerias de produção flexíveis e fiáveis para grossistas, distribuidores, compradores a granel e empresas comerciais a nível global. Em suma, prestamos um serviço completo de marca própria, incluindo logótipos gravados a laser, rótulos de produto personalizados, sacos de plástico selados e impressão de caixas a cores.
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.
Centro de ajuda
FAQ
Q1: How does the AFH45M-46 hot-wire mass air flow sensor function on for Nissan GA16DE and KA24E engines?
O 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.
