Parts for your 2015 Holden Captiva 7-Map sensor

2015 Holden Captiva 7 MAP sensor — what it does and how to look after it

Technical documentation for the CG Series II Captiva (2015) confirms the model is fitted with a Manifold Absolute Pressure (MAP) sensor across both petrol and 2.2‑litre diesel variants. The Holden/GM workshop manual lists a “MAP sensor” in the engine controls, and parts catalogues from AC Delco/GM list a direct-fit MAP/boost pressure sensor for these engines. On the diesel, Bosch EDC17 engine management specifically relies on a boost/MAP sensor for turbo control. So yes — a MAP sensor is absolutely relevant on a 2015 Holden Captiva 7.

On this Captiva, the MAP sensor feeds the ECU a live read of manifold pressure so it can figure out engine load. For the petrol engines, that data works alongside the MAF sensor to fine-tune fuel and ignition, especially during quick throttle changes and as a backup if MAF data goes out of range. On the 2.2 diesel (VCDi), the MAP sensor is also the boost pressure sensor, crucial for turbo management and EGR control. When it’s healthy, the Captiva runs smoother, uses less fuel, and keeps emissions in check.

There’s no fixed replacement interval for a MAP sensor. It’s generally replaced when it fails or its readings drift. Typical tell-tales include a check engine light, poor fuel economy, flat or surging acceleration, rough idle, diesel black smoke, or codes like P0106, P0107, P0108 and, on diesels, P0236/P0237/P0238. Quick scan data checks help: with key on/engine off the sensor should report roughly local barometric pressure (~100 kPa at sea level), at warm idle a petrol engine will show vacuum (around 30–45 kPa), whereas a diesel sits close to atmospheric at idle, only climbing under load.

Servicing tips that suit Aussie and Kiwi conditions:

• Inspect and, if needed, gently clean the sensor tip and port during major services (40–60,000 km), especially on the diesel where soot can build up. Use electronics-safe MAP/MAF cleaner only — never touch the element with tools.
• Check the O‑ring, replace it if flattened or cracked to prevent false readings from leaks.
• If readings are erratic after cleaning, replace the unit with a quality OE-equivalent and clear codes. Refit using the correct torque and ensure the connector is fully seated.

For location, the petrol MAP sensor is typically on or near the intake manifold close to the throttle body. The diesel’s boost/MAP sensor is mounted on the manifold or charge pipe. A quick visual under the bonnet will spot a small two- or three-wire sensor with a single retaining bolt and an O‑ring seal.

FAQs

Where is the MAP sensor on a 2015 Holden Captiva 7?
On the petrol variants, it’s usually fixed to the intake manifold near the throttle body. On the 2.2‑litre diesel, it serves as the boost pressure sensor and is mounted on the intake manifold or a nearby charge pipe. Look for a small sensor with a single bolt and an electrical plug.

What are common symptoms of a faulty MAP sensor on a Captiva 7?
Owners may notice a check engine light, poor fuel economy, hesitation or stalling, rough idle, and lack of power. Diesels can show black smoke or limp mode. Fault codes often include P0106–P0108 and, for diesels, P0236–P0238. If cleaning doesn’t stabilise readings, replacement is the go.

Can the MAP sensor be cleaned or should it be replaced?
Light contamination can often be cleaned with electronics-safe MAP/MAF cleaner. Avoid touching the sensing element. If there’s heavy soot build-up, oil contamination, or persistent codes and erratic data after cleaning, replacement with an OE-quality unit is recommended, along with a fresh O‑ring.