2A67

What the Code Means

2A67 is a BMW-specific code that flags a faulty signal from the intake camshaft position sensor. The DME detects an implausible or missing signal from the sensor, so the control unit loses an accurate read on intake camshaft phasing and can't manage VANOS correctly.

The code is typical for N52 and N54 engines. Causes fall into three groups: failure of the sensor itself, wiring or connector problems, and timing chain faults where the actual camshaft position no longer matches the calculated value.

Symptoms

• Check Engine light comes on;
• hard starting (long crank);
• rough idle;
• power loss under load;
• limp mode.

Diagnosis and Repair

1. Connect an ISTA scanner and confirm 2A67 is present, ruling out a random glitch.
2. Inspect the intake camshaft position sensor connector and wiring: corroded contacts, damaged insulation, poor contact in the plug.
3. Check sensor resistance — 7–12 ohms is the normal range. A value outside that range points to sensor failure.
4. If the sensor is bad, replace it with an original — part number 12147539165.
5. If the code returns after replacement, check the timing chain and VANOS operation: wear or chain stretch shifts the actual camshaft position relative to the sensor reading.

A common diagnostic mistake is replacing the sensor without checking the wiring: with a corroded connector, a new sensor won't clear the code.

Secondary Problems

• misfires from incorrect valve timing;
• catalytic converter damage from unburned fuel during misfires;
• potential mechanical engine damage from prolonged operation with incorrect phasing.

Don't put off the repair: the code is moderate severity at the first stage, but ignoring it turns a sensor replacement into timing chain and converter work.