Instruction Manual

50
V-6: Mid Vacuum Switch
circuit is always open.
V-8: Mid Vacuum Switch
circuit is always open.
56
I-6: Closed Throttle
Vacuum Switch circuit is
always open.
61
V-6: Hi/Low Vacuum
Switch circuit is always
closed.
V-8: Hi/Low Vacuum
Switch circuit is always
closed.
62
Note: “High Altitude”
refers to vehicles with
computer adjusted for
operation at high elevations
such as in Denver,
Colorado.
I-4 (car): Idle Tracking
Switch (ITS) circuit is
closed at idle.
I-4 (truck): Idle/Decel
Vacuum Switch circuit is
always closed.
I-6: Wide Open Throttle
(WOT) Vacuum Switch
circuit is always closed.
V-6 (All except High Altitude):
Altitude (ALT) circuit is
open.
V-6 (High Altitude only):
System pass.
V-8 (All except High
Altitude): Altitude (ALT)
circuit is open.
V-8 (High Altitude only):
System pass.
63
I-4: Wide Open Throttle
(WOT) Vacuum Switch
circuit is always closed.
I-6: CROWD Vacuum
Switch circuit is always
closed.
65
Note: “High Altitude” refers
to vehicles with computer
adjusted for operation at
high elevations such as in
Denver, Colorado.
I-4 (All except High Altitude):
Altitude (ALT) circuit is
open.
I-4 (High Altitude only):
System pass.
V-6: Mid Vacuum Switch
circuit is always closed.
V-8: Mid Vacuum Switch
circuit is always closed.
66
I-6: Closed Throttle
Vacuum Switch circuit is
always closed.