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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 DPF light on, engine rattle, engine running erratically, excessive white smoke, intermittent turbo boost, intermittently stalls, no turbo boost, P2262:00 AC Turbo boost pressure A not detected- mechanical, P242F:00-28 P/Filt Restriction- Ash accumulation, P242F:00-AF P/Filt Restriction- Ash accumulation, P2458:00-2F P/Filt regen duration B1, P2463:00-AF P/Filt Restriction- Soot accumulation, reduced idle speed, running rough, Turbocharger A failure
