LTD V6-232 3.8L VIN C 2-bbl (1984)
compensator on the rear of the carburetor and applying a battery voltage to one spade connector and grounding the other. When power is turned on
and off an audible "click" should be heard. Below 3000 ft. with power applied to the compensator, the engine should idle and run rough. Above
3000 ft., engine idle and run characteristics may not change significantly as compensator is opened and closed.
The compensator should be replaced if the "click" is not heard when power is turned on and off.
Altitude Spark Compensation
The UIC ignition module allows the ignition timing to increase to 4~ above 3500 ft. The UIC is activated by the same barometric switch that activated
the carburetor altitude compensator. The barometric switch is closed above 3500 ft.
Operational Check and Setting Time
Unplug the connector joining the barometric switch and the UIC module. Connect a jumper across the two spade connectors of the UIC. The ignition
timing should be 12~ BTDC with jumper in place. With jumper removed and the UIC not connected to the barometric switch, the ignition timing should
go to 8~ BTDC.
When the UIC to barometric switch connectors are joined, the timing should go to l2~ BTDC above 3500 ft. and remain at 8~ BTDC below 3500 ft.
OTHER APPLICABLE ARTICLES: Supercedes 84-19-7
WARRANTY STATUS: "INFORMATION ONLY"
