Idle Speed: Adjustments

Idle speed must be within 100 rpm of specification listed.
1986-90 4 cyl. exc. 1.8L, 2.0L; V6: With TBI, remove PCV valve and install special tool C-5004 (0.125" orifice) into hose. With MFI, disconnect idle purge line from throttle body. Start engine and using Diagnostic Readout Box, access "Minimum Airflow Idle Speed." If checking speed is not within specification range, replace the throttle body.