Topaz L4-140 2.3L CFI (1985)
Engine Control Module: Customer Interest
Engine - Hard Start/No Start When Cold
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HARD START - 2.3L HSC CFI WITH ATX Article No.
TRANSAXLE - COLD ENGINE
87-1-13
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NO START - 2.3L HSC CFI WITH ATX TRANSAXLE-COLD ENGINE
FORD 1985-86 TEMPO
LINCOLN-MERCURY 1985-86 TOPAZ
CALIBRATIONS: 5-26E-R0, 5-26E-R10, 5-26E-R21; 5-26R-R01, 5-26R-R11, 5-26R-R16; 6-26E-R0; 6-26R-R10
WARNING:
This modification is authorized only for the listed engines. Performing this modification on other engine calibrations is unauthorized and
could create liability under applicable federal or local laws.
ISSUE:
No start and/or hard start on initial cold start up at ambient temperatures of 15~ to 40~F (-10~ to 5~C) may be caused by the strategy of the
EEC IV processor assembly installed on the vehicle.
ACTION:
To correct this, install a new level EEC IV processor assembly using the following service procedure.
NOTE:
Refer to the following application chart to select the correct new level replacement EEC IV processor assembly for the affected calibration.
CALIBRATION APPLICATION CHART
Calibration
Application
New Level EEC IV
Processor
5-26E-R0
49S - ATX
E63Z-12A650-TG
5-26E-R10
49S - ATX
E63Z-12A650-TG
5-26E-R21
49S - ATX
E63Z-12A650-TG
5-26R-R01
Calif. - ATX
E63Z-12A650-UG
5-26R-R11
Calif. - ATX
E63Z-12A650-UG
5-26R-R16
Calif. - ATX
E63Z-12A650-UG
6-26E-R0
49S - ATX
E63Z-12A650-TG
6-26R-R10
Calif. - ATX
E63Z-12A650-UG
1.
Replace the EEC IV processor assembly.
2.
Adjust "hard stop" RPM to the specification listed on page 24 of TSB 86-19-12.
3.
Perform adaptive idle speed control reset procedure as outlined in the Engine/Emission Diagnosis Manual, Volume H, Section 4-55.
4.
Reset transmission TV adjustment as outlined in the Car Shop Manual, Volume E, Section 17-02.
5.
Perform the EEC IV Self-Test to make sure the EEC IV system is operating properly.
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.
PART NUMBER
PART NAME
CLASS
E63Z-12A650-TG
Processor Assembly
B
