Parts for your 1997 Nissan Navara-Map sensor

Is a MAP sensor relevant on a 1997 Nissan Navara?

For most 1997 Nissan Navara utes sold in Australia and New Zealand, a MAP (Manifold Absolute Pressure) sensor isn’t fitted or used. The common petrol engine of the time (KA24E) uses a MAF (Mass Air Flow) sensor to measure incoming air, while the popular diesels (TD27 and QD32 non‑ETi) run mechanical fuel injection with no engine ECU controlling fuelling – so there’s no need for a MAP sensor in those setups.

That’s why hunting a “1997 Navara MAP sensor” usually leads nowhere. On the petrol KA24E, the ECU bases load and fuelling off the hot‑wire MAF in the intake snorkel/airbox, plus inputs like throttle position and engine speed. On the mechanically injected diesels, fuelling is set by the injection pump and boost (if fitted) is managed without an ECU. A MAP/boost sensor starts to matter only on later, electronically controlled turbo‑diesels such as the QD32ETi (arriving around late 1997–1998 in some markets), where the ECU needs manifold pressure for boost and fuelling strategies.

• KA24E 2.4 petrol (D22, 1997): Uses MAF, no MAP sensor.
• TD27 / QD32 mechanical diesels (1997): No ECU, no MAP sensor.
• QD32ETi electronic turbo‑diesel (late ’97/’98+ in some markets): Has a MAP/“boost” sensor tied to the ECU.

Not sure what you’ve got under the bonnet? A quick check helps:- If there’s a plug-in sensor right after the airbox on the intake tube, that’s a MAF (petrol).- If your diesel has no engine ECU and minimal engine bay wiring, it’s mechanical (no MAP).- If it’s an electronic turbo‑diesel (ETi), look for a small sensor with a vacuum/boost hose and a 3‑pin plug mounted on the firewall or manifold – that’s the MAP/boost sensor.

Technical sources referenced: Nissan Navara D22 Factory Service Manual (1997) – EC/FI sections describing MAF-based control for KA24E, Nissan Diesel Engine TD27 and QD32 Workshop Manuals – mechanical injection without ECM, Nissan D22 Electronic Diesel (QD32ETi) service literature (circa 1998+) – inclusion of a “Boost Sensor” (MAP) for manifold pressure input.

• Does a 1997 Nissan Navara have a MAP sensor? Generally, no. Petrol KA24E models use a MAF, and most 1997 diesels are mechanically injected without an ECU. Only later electronic turbo‑diesels (ETi) use a MAP/boost sensor.
• Where would the MAP sensor be on a Navara that does have one? On electronic turbo‑diesels, it’s typically on the firewall or intake manifold with a short hose to manifold pressure and a 3‑wire connector. Nissan often labels it “Boost Sensor.”
• What are symptoms of a failing MAP/boost sensor on ETi models? Low power, black smoke, erratic boost, high fuel use, or limp mode. Fault codes like P0105–P0108 may appear. Check the hose for splits, clean the port, and verify wiring before replacing the sensor.