WenmarOpen by Wenmar Pro

P1334 on the 2005 Ford Excursion

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
196002007-04-11. Service bulletin. EGR THROTTLE PLATE - DTC'S P0487, P0488, AND P1334 - MIL. 04.25 MODEL YEAR LEVEL ENGINES ONLY. *KB
051762005-12-15. Service bulletin. DIAGNOSTIC TROUBLE CODE P0488 AND/OR P1334 WITH NO DRIVEABILITY SYMPTOMS, HARSH SHIFT AND/OR TRANSMISSION ENGAGEMENTS. *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.