Colt L4-1597cc 1.6L SOHC Turbo (1985)
Idle Up Control Valve: Adjustments
Fig. 19 Throttle opener system. 1982-86 models except 1982 Champ & Colt (federal) w/1400cc engine & manual transaxle
1.
Start engine and allow to reach normal operating temperature.
2.
Ensure that all electrical accessories are "Off," then position transmission in "Neutral."
3.
Set curb idle to specifications.
4.
With air conditioning system "Off," disconnect vacuum hose from throttle opener nipple, then apply 20 inches Hg vacuum to throttle opener with
a suitable vacuum pump.
5.
Adjust engine speed with throttle opener setting screw, Fig. 19, to the following specifications:
a. On 1982 Champ & Colt (1600cc engine), set engine speed to 900 ± 50 RPM for automatic transaxle equipped vehicles, or 850 ± 50 RPM
for manual transaxle equipped vehicles.
b. On 1982 Challenger, Sapporo & Pickup, set engine speed to 900 ± 50 RPM.
c. On 1983 Challenger & Sapporo, set engine speed to 1050 ± 50 RPM.
d. On 1983 Colt, set engine speed to 1100 ± 50 RPM for manual transaxle equipped vehicles, or 1150 ± 50 RPM for automatic transaxle
equipped vehicles.
e. On 1983 Pickup, set engine speed to 1000 ± 50 RPM for 2600cc engine.
f.
On 1984 Colt & Colt Vista, set engine speed to 850 ± 50 RPM.
g. On Pickup models, set engine speed to 875 ± 25 RPM.
h. On 1985-88 Colt, set engine speed to 875 ± 25 RPM.
i.
On 1985-88 Colt Vista models W/feedback carburetor, set engine speed to 750 RPM.