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KEEPING AIR CONTROL GROUNDED,
ALSO GROUND THE BY-PASS VALVE AT
THE DIAGNOSTIC CONNECTOR PIN 11
ON 1981; D2-5 ON 1982
OBSERVE THE STEPPER MOTOR PIN
MOVEMENT AGAIN AT PART THROTTLE
STAYS FORWARD
CHECK FOR VACUUM
IN THE BY-PASS
VALVE HOSE
NO VACUUM
CHECK VACUUM SUPPLY
TO THE SOLENOID
ON TOP OF THE VALVE
COVER
NO VACUUM
REPAIR VACUUM
ROUTING
REPLACE
SOLENOID
ASSEMBLY
REASSEMBLE
AND RETEST
DIAG. CONN.
10 OR
11 OR
D2-8
D2-5
BY-PASS SOLENOID
1
YELLOW
AIR CONTROL
SOLENOID
6-Cylinder
18
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