Crankshaft/Camshaft Correlation Bank 2 Sensor A
The engine computer sees that the crankshaft and camshaft signals do not match the expected timing on bank 2. This usually means the cam timing is off, the sensor signal is bad, or the timing chain or belt has a problem.
You may be able to drive a short distance, but performance and reliability can get worse quickly. If the engine runs rough, stalls, or makes timing noise, stop driving and have it inspected soon.
P0018 sets when the PCM detects a correlation error between the crankshaft position sensor and the camshaft position sensor for bank 2, sensor A, which is usually the intake cam on that bank. The code indicates the actual cam timing is outside the learned or expected range, often from mechanical timing wear, sensor issues, oil control problems, or incorrect installation after repairs.
It means the engine computer detected a mismatch between crankshaft and bank 2 camshaft timing.
Yes. It can cause poor running, stalling, and possible engine damage if the timing problem is mechanical.
Yes. Low or dirty oil can keep the cam phaser from moving correctly and trigger the code.
No. The code will usually come back until the underlying problem is repaired.
Yes. A failing cam or crank sensor, damaged wiring, or connector problems can cause the correlation error.