LTD V6-232 3.8L VIN C 2-bbl (1984)
Ignition Control Module: All Technical Service Bulletins
Carburetor - 2150-2V Diagnostic/Service
Article No. 85-17-4
CARBURETOR (2150-2V) - VEHICLES WITH 3.8L ENGINE
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DIAGNOSTIC/SERVICE INFORMATION
FORD 1984 LTD
LINCOLN-MERCURY 1984 MARQUIS
CALIBRATION: 4-14B-R11
The 4-14B-R11 (3.8L 2V, 49 States, C5 LTD/Marquis) calibration incorporates altitude compensation for fuel and spark. Three components are used to
accomplish this compensation; the carburetor altitude compensator, the UIC ignition module, and the barometric pressure switch. Service and diagnostic
information for these components are shown below.
Altitude Fuel/Air Ratio Compensation
The altitude compensator, located on the back of the carburetor, is a two position (open or closed) device. When open, it reduces fuel flow by bleeding
air into the carburetor main and idle circuits. The carburetor is the same type as 2150A feedback carburetor except the feedback motor is used as an
altitude compensator only.
