Century V6-173 2.8L VIN W FI (1987)
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Idle Air Control Valve, Housing and attaching screws
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Throttle Position Sensor and attaching screws
These items can be transferred from the original throttle body assembly.
Follow the throttle body removal and installation procedures covered in the "Driveability and Emissions-Port Fuel Injection Section" 6E3 of the Service
Manual. After installing the replacement throttle body, preset the throttle stop screw as follows:
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Back throttle stop screw out until it breaks contact with the throttle lever. Turn screw in to lightly contact lever, then 1-3/4 additional turns.
Final minimum idle speed adjustment should be performed following the procedure below:
a.
Ground diagnostic "test" terminal.
b.
Turn ignition "ON", but do not start engine.
c.
Wait 36 seconds and disconnect IAC electrical connector.
d.
Remove ground from diagnostic "test" terminal, start engine, and allow system to go to "closed loop".
e.
Note idle RPM in "drive" and adjust to specification (idle stop screw plug must be removed to gain access to idle stop screw).
f.
Turn ignition "OFF" and reconnect IAC electrical connector.
g.
Adjust TPS to 0.55 +/- 0.08 volts.
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Adjust minimum idle speed to 550 +/- 50 RPM.
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Adjust TPS to 0.55 volts +/- 0.1 volts (0.45 to 0.65 volts).
WARRANTY INFORMATION
Labor Operation Number:
T1206
Labor Time:
0.9 Hours
Trouble Code:
92