Ford VSG-411 Service Manual page 48

02-I 3 lanition Svstem - Distributorless
02-I 3
DIAGNOSING AND TESTING DIS (Continued)
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GROUND
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57v
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USER NOTES:
.
NOTE THE WIRE LOOP FROM UESC PIN 6 TO PIN 7.
IF THE ENGINE IS OPERATED WITH LOW OCTANE FUEL
IT MAY BE NECESSARY TO RETARD THE SPARK. THIS
MAY BE DONE BY CUTTING OPEN THE LOOP AND
GROUNDING THE WIRE WHICH GOES TO PIN 6 TO PIN 7
OR BOTH
TO RETARD 4" GROUND WIRE TO PIN 7
TO RETARD 10" GROUND WIRE TO PIN 6
TO RETARD 18" GROUND WIRE TO PIN 6 & 7
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THE UESC MODULE MUST BE MOUNTED SOMEWHAT
ABOVE THE LEVEL OF THE INTAKE MANIFOLD. THIS IS SO
THAT FUEL OR CONDENSED FUEL VAPORS CANNOT DRAIN
(THRU THE VACUUM LINE) INTO THE MODULE
DURING OPERATION OR STORAGE
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WIRE 354 CONTAINS A 10 KQ SERIES RESISTOR. FROM
THE RESISTOR TO THE ECT SENSOR CONNECTOR THIS
CIRCUIT IS CALLED 354A.
850A 16C 852A
DISTRIBUTORLESS
TO ENGINE
COOLANT
TEMPERATURE
SENSOR
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264 265 354 6 6 16M 57 359 8-50 852
TACH
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