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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 engine hydraulic lock, engine will not start cold, engine will not start hot, excessive breathing from rocker cover breather pipe, failed injectors, injector washers leaking, Landrover, loss of power, P0087 fuel pressure is too low, P0089 - Fuel pressure control valve 1 performance, unburnt diesel smell, white smoke
