Mazda CX-9 P0204:  Injector Circuit Malfunction | Cylinder 4

P0204 is an OBD II trouble code.  It means that you have a fuel injector with a circuit malfunction, specifically the fourth cylinder in the firing order).  It’s generic code, which means that it means the same thing for the Mazda CX-9 as it would for any other vehicle. When the PCM sees that the … Read more

Mazda CX-9 P0015: “B” Camshaft Timing  → Over Retarded

  P0015 is a generic OBD II trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Mazda CX-9 can have VVT, and is known to develop this code. VVT changes the frequency and distribution of gases entering and exiting the combustion chamber. It allows the … Read more

Mazda CX-9: High Oil Pressure → Causes + Diagnosis

If your Mazda CX-9 is experiencing unusually high oil pressure, you need to find out what’s causing it right away. Unusually high oil pressure can indicate serious problems, such as a blocked oil passage, or a broken pressure relief valve.  It should be treated like you have no oil pressure until you verify what is … Read more