Parts for your 2008 Holden Captiva 5-Map sensor

2008 Holden Captiva 5 MAP Sensor — What It Does and How to Look After It

Yes, the 2008 Holden Captiva 5 is fitted with a MAP (Manifold Absolute Pressure) sensor. This is documented in the Holden/GM Global Service Information for Captiva CG Engine Controls (2.4L LE5), where “Manifold Absolute Pressure (MAP) Sensor” diagnostics and testing are specified. The Haynes Holden Captiva 2006–2017 workshop manual also covers MAP sensor checks, and common parts catalogues (ACDelco/GM and Bosch) list MAP sensors for Captiva CG 2.4L models around 2008. These sources establish the MAP sensor as a standard engine management input on the Captiva 5.

On this model, the MAP sensor measures absolute pressure in the intake manifold so the ECU can calculate engine load. That data helps the ECU trim fuel, spark timing and idle speed, and it also assists with altitude correction. Some Captiva 5 variants run both a MAF and a MAP sensor—nothing odd about that, the ECU uses the MAP for transient response and sanity checks.

Typical signs of a tired MAP sensor include sluggish performance, rough idle, hard starting, sooty exhaust, higher fuel use and a lit check engine lamp. Common fault codes are P0106, P0107 and P0108. Left unchecked, over-fuelling can harm the catalytic converter, so it’s worth sorting early.

Service-wise, the MAP sensor isn’t a scheduled replacement item, but it benefits from periodic inspection—every 20,000–30,000 kilometres is a good rule of thumb, especially if the vehicle sees dusty roads. Make sure the electrical connector is clean and snug, the O‑ring isn’t split, and there are no vacuum leaks around the manifold, PCV plumbing or brake booster line. If oil mist or dust has coated the sensing port, a gentle clean with electronics-safe spray can restore response—avoid harsh solvents and don’t poke tools into the port.

• Symptoms to watch: rough idle, flat spots, poor economy, fuel smell, and DTCs P0106–P0108.
• Basic replacement steps:
  1. Ignition off, disconnect battery negative if preferred.
  2. Unplug the 3‑pin connector.
  3. Remove the retaining screw/clip, withdraw the sensor.
  4. Lightly oil the new O‑ring, install sensor squarely, refit screw (don’t over-tighten).
  5. Reconnect, clear codes, and let the ECU relearn idle with a short warm idle drive cycle.

Use an OE‑quality part that matches the VIN, as 2.4‑litre and other engine options may use different part numbers and calibration ranges.

FAQs

Where is the MAP sensor on a 2008 Captiva 5?
It’s mounted on the intake manifold near the throttle body, secured by a single bolt/clip and a 3‑pin plug. Look under the bonnet along the manifold runners—you’ll see a small sensor with an O‑ring seal pressing into the manifold.

Can it be driven with a faulty MAP sensor?
Usually yes, but it’s not a great idea. The ECU will fall back to default values, which can spike fuel use and emissions and may eventually damage the catalytic converter. Best to diagnose and repair promptly.

Do different Captiva 5 engines use the same MAP sensor?
Not always. The 2.4‑litre four and other engine options can use different part numbers and calibration. Match by VIN/engine code and use reputable brands to avoid drivability issues.