A-Premium Mass Air Flow Sensor for Toyota Lexus Scion — 5‑Pin Direct-Fit MAF, OEM-Style Accuracy

The A-Premium 5-pin Mass Air Flow (MAF) Sensor accurately measures intake air volume and density for compatible Toyota, Lexus, and Scion models. The A-Premium MAF sensor is a direct-fit replacement designed to restore proper air-measurement to engines that use a five-pin connector. Built from PBT+GF30 and aluminum alloy components, this bolt-on sensor matches OEM mounting and electrical characteristics to help the engine control unit (ECU) calculate fuel delivery across a wide range of operating conditions.

Which vehicles will this A-Premium MAF sensor fit?

This sensor covers a broad selection of Toyota, Lexus, and Scion applications spanning late 1990s through 2018 model years. Fitment includes popular trucks, SUVs, sedans, and compact cars — check your vehicle’s engine size and connector style against the provided reference numbers to confirm compatibility.

• Toyota: 4Runner, Tacoma, Tundra, Avalon, Camry, Celica, Corolla Matrix, MR2 Spyder, Highlander, Echo, Prius, FJ Cruiser, RAV4, Sienna, Solara, Yaris.
• Lexus: RX300/RX330, ES300/ES330, GS300/GS430, IS300, LS430, RX400h, GS450h.
• Scion: xB, tC, xA models with 5-pin connector fitment.
• Reference numbers include common OEM and aftermarket part codes supplied for cross-checking.

How does this sensor measure airflow and help the engine manage fuel?

The MAF sensor detects intake air volume and density and sends that signal to the ECU so it can calculate the correct fuel injection pulse. Accurate airflow data reduces fueling guesses and helps return drivability when replaced for a failed or drifting unit.

• Measurement range up to 9.25 m³/min with ±3% accuracy for dependable readings.
• Operates on standard 12-volt vehicle electrical systems.
• Five-pin terminal layout and two-bolt mounting mirror common OEM designs for easy installation.

What are the physical and electrical specifications I should verify?

This MAF sensor is engineered as a bolt-on replacement using durable materials and an aluminum alloy internal construction. Confirm your vehicle’s electrical connector (5-pin) and bolt-hole layout before purchase to ensure a proper match.

• Terminal quantity: 5 pins; terminal type: male pins suitable for OEM harnesses.
• Mounting: 2 bolt holes, bolt-on replacement; housing not included in the internal assembly list.
• Materials: PBT+GF30 plastics with aluminum alloy internals for thermal stability and longevity.

Will installing this part affect engine performance or diagnostics?

Replacing a faulty MAF sensor typically restores correct air/fuel calculations and clears air-related drivability symptoms. After installation, intermittent faults tied to inaccurate airflow readings are often resolved, though clearing stored codes with a scanner may be required.

• Helps the ECU determine fuel injection across ambient temperature changes.
• May resolve rough idle, hesitation, or poor fuel economy caused by bad airflow readings.
• One-year unlimited-mileage guarantee from A-Premium provides added confidence in the replacement part.

Who is this for: Owners and technicians searching for a reliable, cost-effective 5-pin MAF sensor replacement for Toyota, Lexus, and Scion vehicles. It’s intended for people who need a direct-fit, durable sensor that aligns with OEM mounting and electrical specifications, backed by a one-year unlimited-mileage warranty for peace of mind.

FAQ

Q: Does this MAF sensor fit my Toyota Tacoma?

A: Yes, it fits Tacoma model years 1999–2004 with 3.4L and 2005–2015 with 4.0L engines using a 5-pin connector.

Q: What warranty does A-Premium provide?

A: A-Premium includes a one-year unlimited-mileage guarantee on this MAF sensor.