Intake Air Pressure / Turbo Boost MAP Sensor 8-98020514-0 8980205140 For ISUZU VC46 4HK1 6UZ1 FVR D-MAX — 3-Pin Connector, Black Housing, 0.2kg, OEM-Spec Aftermarket

The Intake Air Pressure / Turbo Boost MAP Sensor with OEM references 8-98020514-0 / 8980205140 is a verified replacement sensor for ISUZU VC46, FVR, 4HK1, 6UZ1, and 4JJ1 diesel engines, with confirmed cross-platform coverage extending to D-MAX, MU-X, and F-series / N-series commercial trucks. This is a Manifold Absolute Pressure (MAP) sensor — a critical input device for the engine control unit (ECU) that measures intake manifold pressure (boost pressure) and reports it as an electrical signal. The ECU uses this data to calculate fuel injection quantity and timing, turbo boost control, and exhaust gas recirculation (EGR), directly affecting engine power, fuel efficiency, and emissions.

The sensor is cataloged under multiple functional descriptions across the supply chain — "Air Pressure Sensor", "Turbo Boost MAP Sensor", "Boost Pressure Sensor", and "Intake Air Pressure Sensor" — all referring to the same MAP sensor installed on the intake manifold or charge-air pipe. It is a piezoelectric-type pressure sensor with a voltage signal output and a 3-pin black connector. The reference net weight is 0.2 kg (200 g), and it is supplied as an OEM-specification aftermarket component with a 3-month warranty reference from one supplier.

• Sensor Type & Function: Confirmed as a MAP (Manifold Absolute Pressure) sensor — also described as a Turbo Boost Pressure Sensor and Intake Air Pressure Sensor — monitoring intake boost pressure and transmitting data to the ECU for fuel and boost optimization.
• Connector & Electrical Spec: 3-pin connector, black housing color, piezoelectric sensor type, voltage signal output.
• Weight: 0.2 kg (200 g) — confirmed by multiple supplier listings.
• Engine & Vehicle Coverage: Confirmed for ISUZU VC46, 4HK1, 6UZ1, 4JJ1, FVR, D-MAX, MU-X, N-series, and F-series applications.
• Cross-Reference Density: 8-98020514-0, 8980205140, 98020514, 8-98020-514-0, 8980205141, 8-9802014-1 are consistently grouped as interchangeable/related references across Partsouq, Euro4x4parts, Volza, and multiple international suppliers.
• OEM Part Description: "SENSOR; PRESS" (Pressure Sensor) in the official ISUZU parts catalogue, with a reference price of $205.58 USD.
• HS Code: 90262050 — classification for pressure sensors, used in Japanese export shipments of this part to Vietnam and other markets.
• Warranty Reference: 3 months (supplier listing) — confirm tier at inquiry.
• Mounting Thread / Bore Diameter: Not publicly disclosed. Public supplier listings do not publish the exact thread size or mounting bore diameter for this sensor. Confirm these against the original unit — do not assume a specific thread specification without physical verification.

• Loss of power / reduced engine performance: The ECU receives inaccurate boost pressure data and limits fuel delivery or boost, resulting in sluggish acceleration and reduced pulling power — a direct consequence of MAP sensor failure documented by Partsouq.
• Increased fuel consumption: Without accurate boost pressure feedback, the ECU cannot optimize the air-fuel ratio, leading to over-fueling or under-fueling and higher fuel consumption.
• Engine warning light (Check Engine) illumination: The ECU detects an implausible or missing signal from the MAP sensor and sets a diagnostic trouble code (DTC), triggering the warning lamp.
• Rough idle, hesitation, or stalling: Incorrect pressure data disrupts idle stability and low-load drivability, potentially causing stalling.
• Black smoke or excessive exhaust emissions: Over-fueling due to missing boost feedback produces visible black smoke and increases emissions.
• Turbo boost under-performance or over-boost: The ECU may fail to command the VGT or wastegate correctly, resulting in either low boost (power loss) or over-boost (derate and protection mode).

• Connector pin count is the first check: This sensor uses a 3-pin black connector. If the original sensor has a different pin count or connector color, do not install this unit — the ECU will not receive a valid signal, and the engine may derate or fail to start.
• Mounting thread/bore must be confirmed: Public data does not specify the mounting thread or bore diameter. Measure the original sensor's mounting provision or provide a photograph before ordering. A sensor that does not seal correctly will cause a boost leak and incorrect pressure readings.
• VC46 / 6UZ1 vs. 4HK1 applications: The sensor is confirmed for VC46 with 4HK1 and 6UZ1 engines. The 4HK1 and 6UZ1 share the same sensor reference in aftermarket coverage, but confirm the engine code and original sensor marking before ordering, especially for fleet applications with mixed engine types.
• MAP vs. other pressure sensors: This is an intake/boost pressure sensor, not a fuel rail pressure sensor or oil pressure sensor. Confirm the sensor's installed location (intake manifold/charge pipe vs. fuel rail/oil gallery) before ordering.

1. Confirm the required sensor first: Verify that the original sensor is the MAP / Boost Pressure sensor (mounted on the intake manifold or charge-air pipe) with a 3-pin black connector. Compare the mounting thread/bore to the replacement.
2. Safety first: Ensure the engine is cool. Disconnect the negative battery terminal.
3. Disconnect the electrical connector: Release the connector latch carefully — do not pull on the wires. Inspect the connector pins for corrosion; a corroded connector can mimic sensor failure.
4. Remove the old sensor: Unscrew or unbolt the sensor from its mounting provision. Note the orientation and any O-ring or seal.
5. Clean the mounting surface: Remove any dirt or old seal residue from the sensor port. Do not allow debris to enter the intake tract.
6. Install the new sensor: Thread the 8-98020514-0 sensor into the port by hand first, then torque to the workshop manual specification. Do not over-torque — the sensor body or plastic housing can crack.
7. Reconnect the electrical connector: Ensure the connector clicks into place and the seal is intact.
8. Clear fault codes and verify: Use a diagnostic tool to clear any stored MAP sensor codes, then start the engine and verify that the live data shows plausible boost pressure readings at idle and under load.

• Inspect the sensor connector at every engine service — corrosion or a loose latch is a common cause of intermittent MAP faults.
• Clean the sensor port if carbon buildup is observed during intake service — a blocked port prevents the sensor from reading true manifold pressure.
• Replace the sensor at the first sign of power loss, increased fuel consumption, or a stored MAP-related DTC — do not "monitor" a known-failing sensor on a commercial vehicle.
• Use a diagnostic scan tool to verify live data after installation — a functioning sensor should report boost pressure that rises and falls with engine load and RPM.

• Standard packing: Neutral box / color box / customer-branded packaging; bulk export carton available.
• Package contents: 1 × Intake Air Pressure / Turbo Boost MAP Sensor. Mounting bolts and O-rings may or may not be included — confirm exact package contents at inquiry.
• Suitable for: ISUZU VC46 / FVR / D-MAX / MU-X / N-series / F-series engine repair shops, commercial truck fleet maintenance departments, diesel engine rebuilders, spare parts distributors, and export wholesalers serving Southeast Asia, the Middle East, Africa, and Latin America.
• Related parts available: MAP sensor connector pigtail, intake manifold gaskets, boost pressure hoses, EGR components, and diagnostic scan tools for ISUZU diesel engines.