Vehicle - High Altitude Calibration Conversion
Article No.93-2-8
01/18/93
^ EEC IV - 5.0L - 49 STATE AND HIGH ALTITUDE CALIBRATION CONVERSION
^ VEHICLE REGISTRATION REQUIREMENTS - 5.0L - 49 STATE AND HIGH ALTITUDE CALIBRATION CONVERSION
LIGHT TRUCK:
1993 BRONCO, ECONOLINE, F-150, F-250
CALIBRATION:
2-54J-R10, 2-54E-R10, 2-54K-R11, 2-54L-R12, 2-54W-R10, 2-54Z-R10, 2-54V-R11, 2-54X-R12
WARNING:
THIS MODIFICATION IS AUTHORIZED ONLY FOR THE LISTED ENGINE. PERFORMING THIS MODIFICATION ON OTHER ENGINE CALIBRATIONS IS UNAUTHORIZED AND COULD CREATE LIABILITY UNDER APPLICABLE FEDERAL OR LOCAL LAWS.
ISSUE:
The subject vehicles are calibrated for either 49 State or for High Altitude use. Transferring one of these vehicles from 49 State to High Altitude use, or High Altitude to 49 State use, may require changing of the EEC IV Processor with another processor having the proper calibration. The F-150/5.0L/E40D/3.08 Gear Ratio vehicles need additional modifications.
ACTION:
If a calibration conversion is required for meeting vehicle registration requirements, use the service procedure.
1. If it is necessary to change the calibration in one of subject vehicles, between 49 State and High Altitude, refer to the appropriate EEC IV Processor Conversion Chart shown in Figure 1.
2. If the calibration conversion involves a 1993 (49 State/Calibration 2-54L-R12) 5.0L equipped F-150 with E40D transmission and 3.08 gear ratio rear axle assembly, it will need to have a 3.55 gear ratio rear axle assembly installed in addition to having the EEC IV Processor replaced.
NOTE:
THIS IS REQUIRED ONLY WHEN CONVERTING FROM 2-54L-R12 TO 2-54X-R12 (49 STATE TO ALTITUDE).
^ Before servicing the Axle Assembly, call 1-800-FORD-AXL for further information and part shipping instructions.
^ After receiving instructions from the Axle Hotline, follow the procedure in the 1993 Powertrain/Drivetrain Service Manual for removal and installation of the Axle Assembly.
Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of alterations performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.
Parts Block
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS:
Eligible Under Bumper To Bumper Warranty Coverage, Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
930208A Replace EEC IV Processor 0.8 Hr.
- Bronco And F-Series
930208B Replace EEC IV Processor 0.3 Hr.
- Econoline
930208C Replace EEC IV Processor 3.2 Hr.
And Replace Rear Axle
Assembly, 49 State F-150
With E40D And 3.08 Gear
Ratio (Calibration
2-54L-R 12)
DEALER CODING
BASIC PART NO. CONDITION CODE
12A650 08
OASIS CODES: 623000