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P1334 on the 2004 Ford E-450

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.

Bulletins for this model year that name P1334
051852005-12-14. Service bulletin. RPM SURGE AT IDLE - AUDIBLE EGR SURGE - LOW POWER/EXHAUST SMOKE/ROUGH IDLE FOLLOWING COLD START - HIGH RPM IN BATTERY CHARGE PROTECTION MODE - DIAGNOSTIC TROUBLE CODE P0488 AND P1334 - 6.0L ENGINE. *TT
185982005-12-07. Service bulletin. INTERMITTENT CRANK NO START DUE TO AN EGR THROTTLE PLATE THAT IS STUCK CLOSED. THE ENGINE MAY SEEM LIKE IT HAS NO COMPRESSION DUE TO A FASTER THAN NORMAL CRANKING SPEED OF GREATER THAN 200 RPM. DTC P0488 OR P1334 MAY OR MAY NOT BE PRESENT. *TT

2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.