P0024 — Camshaft timing on bank 2 is too advanced

The engine's camshaft timing on bank 2 is running earlier than it should. This usually happens because the system controlling the camshaft timing is malfunctioning or the timing components are worn or stuck. It can cause rough running, reduced fuel efficiency, or increased emissions.

Common causes

The cause is almost always one of a few things. Here they are — P0024 rarely comes from anything outside this list:

• Faulty camshaft position actuator or solenoid
• Dirty or low engine oil affecting timing control
• Worn or damaged timing chain or belt
• Faulty camshaft position sensor
• Engine control module software issues

Where to start

In the order a sensible mechanic would work — the cheap checks first, the expensive replacements only after:

1. Check and top up engine oil level and quality
2. Inspect and clean or replace camshaft position actuator
3. Test and replace camshaft position sensor if faulty
4. Inspect timing chain/belt condition and tension
5. Replace timing components or control module if needed

That is what holds for P0024 in general. From here it depends on your engine — tell me which car it is and what it does, and I will give you the steps for it: real procedures, torque figures and diagrams instead of general advice.