Parts for your 2007 Isuzu D-max-Crank angle sensor

2007 Isuzu D‑Max crank angle sensor: what it does, where it lives, and how to look after it

Yes — the 2007 Isuzu D‑Max is fitted with a crank angle sensor (also called a crankshaft position sensor/engine speed sensor). This is documented in the Isuzu D‑Max 4JJ1/4JK1 Engine Workshop Manual (engine control section), the Isuzu diagnostic trouble code list for P0335/P0336, and Denso common‑rail diesel technical guides. On these common‑rail diesels, the ECM relies on the crank signal for injection timing and engine speed, so it’s absolutely relevant to servicing and fault‑finding.

On a 2007 D‑Max, the crank angle sensor reads a toothed target on the crankshaft to tell the engine control module exactly where the pistons are and how fast they’re turning. The ECM uses that info to schedule pilot and main injections, sync with the cam sensor, manage rail pressure and keep idle smooth. If the signal is missing or messy, starting becomes hard or impossible, economy tanks, and the ute can drop into limp mode.

While the sensor isn’t a routine “replace at X km” item, it deserves attention whenever the vehicle is serviced, especially if it sees plenty of dust, mud or river crossings.

• Common symptoms of a failing crank angle sensor: long crank/no start when hot, random stalling, erratic tacho, poor fuel economy, and DTCs P0335 or P0336.
• Location: typically mounted to the block reading the crank/flywheel, on most 4JJ1 engines it’s by the bellhousing area. Always confirm via the engine section of the Isuzu workshop manual for the exact variant.

Replacement pointers for the home mechanic: disconnect the negative battery terminal, reach the sensor, unplug the connector, remove the retaining bolt, and withdraw the sensor carefully so the O‑ring isn’t left behind. Lightly oil the new O‑ring, install the new sensor flush, and tighten the bolt to the workshop‑manual torque spec. Reconnect, clear any codes, and let the engine idle to stabilise. Coding isn’t usually required on D‑Max common‑rail diesels, but a scan‑tool crank/cam relearn may help if idle is unsettled.

Good servicing habits: keep the connector clean and dry, use dielectric grease on the plug if the vehicle regularly tackles water, and fix any oil leaks that could contaminate the sensor face. Use genuine or high‑quality aftermarket parts to avoid incorrect mounting depth or signal noise. If a no‑start occurs, check wiring and grounds before condemning the sensor.

Popular questions about the 2007 Isuzu D‑Max crank angle sensor

Where is the crank angle sensor on a 2007 D‑Max?
On most 4JJ1‑equipped models it’s mounted on the engine block, reading the crank or flywheel near the bellhousing area. Some variants place it toward the front timing area. The exact spot can vary by engine code and market, so it’s best to confirm against the Isuzu engine workshop manual or by checking the VIN‑matched parts diagram.

Does it need programming after replacement?
Generally, no. The D‑Max’s ECM will recognise a correct sensor without coding. After installation, clear fault codes and let it idle to settle trims. If the idle hunts or a code returns, a scan‑tool crank/cam relearn and a wiring inspection are worthwhile.

What fault codes point to a bad crank angle sensor?
Common DTCs are P0335 (Crankshaft Position Sensor “A” Circuit) and P0336 (Crankshaft Position Sensor Range/Performance). Intermittent versions can indicate wiring/connector issues, metal debris on the sensor tip, or excessive air gap rather than a failed sensor itself.