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This technical bulletin is part of Diesel Help’s member-only diagnostic library.
When fault codes stop making sense, the issue is often understanding how the system you’re working on is designed to operate.
Start here:
Know the diesel fuel system you are diagnosing
Tagged DTC P2563 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Range/Performance, DTC P2564 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Low, DTC P2565 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit High, DTC P2588 Turbocharger/Supercharger Boost Control Position Sensor "B" Circuit Low, DTC P2589 Turbocharger/Supercharger Boost Control Position Sensor "B" Circuit High, engine light on, low power, P1264, P1264 VN Turbo controller malfunction, P2564A, P2588B
