Checking Throttle Stop RPM
- With engine running at normal operating temperature, reconnect vacuum connector at EGR CVSCC valve. Reinstall PCV valve. Remove jumper wire from radiator fan and reconnect connector.
- Remove power feed wire to SIS or solenoid kicker from carburetor 6-wire connector. Tachometer should read 600 RPM or less. If engine speed is okay, test is complete. If speed is greater than 600 RPM, adjust to specifications.