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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 B1318 low battery voltage at module, engine will not start hot, P0097 Intake air temp sensor circuit performance, P0106 MAP/Barometric pressure sensor circuit/range performance, P0191 Fuel rail pressure sensor circuit range/performance, P0335 Crankshaft position sensor circuit malfunction, P0340 Camshaft position sensor circuit malfunction, P0606 ECM processor fault, P0607 ECM Control Module Performance, P2227 Barometric pressure sensor range/performance
