Engine Controls - MIL ON/DTC's P0171/P0172/P0174/P0175
TSB 04-22-1111/15/04
MALFUNCTION INDICATOR LAMP (MIL)
ILLUMINATED WITH DIAGNOSTIC TROUBLE CODES
(DTC'S) P0172, P0175, P0171 AND/OR P0174 - 4.0L
SOHC ENGINE - VEHICLES BUILT PRIOR TO
10/4/2004
FORD:
2004-2005 Explorer
MERCURY:
2004-2005 Mountaineer
This article supersedes TSB 04-19-7 to update the vehicle model years and DTC information.
ISSUE
Some 2004-2005 Explorer 4drlMountaineer vehicles built prior to 10/4/2004 with the 4.0L SOHC engine, may exhibit the MIL illuminated with one or more of the following DTC's:
^ P0172 - SYSTEM TOO RICH (BANK 1)
^ P0175 - SYSTEM TOO RICH (BANK 2)
^ P0171 - SYSTEM TOO LEAN (BANK 1)
^ P0174 - SYSTEM TOO LEAN (BANK 2)
ACTION
Reprogram the powertrain control module (PCM) to the latest calibration using WDS release B33.10 or higher. Calibration files may also be obtained at the website.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
042211A Check For Diagnostic 0.4 Hr.
Trouble Codes And
Reprogram Powertrain
Control Module
DEALER CODING
CONDITION
BASIC PART NO. CODE
RECALEM 04
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