What P0021 means
Posición del árbol de levas A - Exceso de avance o desempeño del sistema (Banco 2)
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P0021:
| BMW | "A" Camshaft Position - Timing Over-Advanced or System Performance |
| MITSUBISHI | A Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) |
| NISSAN | A Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) |
Read this code on your own car
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