Idle Speed Adjustment
WARNING: BEFORE PROCEEDING WITH THE IDLE SPEED ADJUSTMENT, VERIFY THAT THE FOLLOWING ITEMS ARE TAKEN CARE OF PROPERLY.
^ The transmission is in PARK or Neutral.
^ The parking brake is applied.
^ The wheels are properly blocked.
^ The engine is at operating temperature.
^ The heater, A/C, cooling fan and other accessories are OFF.
Figure 3:
Figure 4:
Figure 5:
The EFI throttle body idle speed adjustment procedures for the various model year passenger cars and light trucks are outlined in step-by-step procedures featured in Figures 3, 4 and 5. Select the appropriate procedure for the vehicle involved and adjust the throttle body idle RPM accordingly, after service kit installation.
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Figure 7:
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Figure 11:
THROTTLE BODY AND IDLE AIR BY-PASS SOLENOID SERVICE PROCEDURE
Detailed application charts for throttle body and idle air by-pass solenoid service procedures by engine VIN # /engine displacement/vehicle application and model year are shown in Figures 6 through 11. Refer to these charts to see if the service kit is to be installed and which service cleaning procedure, if any, is to be used.
SERVICE CLEANING PROCEDURES
The following items should be noted prior to beginning the service cleaning procedure.
^ Confirm that the correct service cleaning procedure is identified in the Application Charts, Figures 6-11, for the vehicle/engine combination being serviced.
^ Do not clean throttle bodies identified to accept service kit (F2PZ-9F939-A), IDLE AIR ADJUST SPACER.
^ Use a 1" (25.4 mm) to 1-1/2" (38.1 mm) wire stemmed horse hair or nylon bottle cleaner type brush.
^ Use rubber gloves and eye protection.
^ Do not clean throttle bodies identified with a yellow/black "ATTENTION" label.
^ Do not clean "Black" plastic air by-pass valves. Refer to TSB 89-13-8 for service details.
^ Do not run vehicles with air flow meters when the air duct is removed.
^ Do not use carburetor cleaner as a cleaning solvent. Use Carburetor Tune-up Cleaner (D9AZ-19579-AA).