Idle Speed

Idle Speed Adjustment:

PREPARATION

1. Warm engine to operating temperature.
2. Turn all electrical loads "OFF:"
^ Headlight Switch
^ Blower Switch
^ Rear Window Defroster Switch
3. Connect Mazda SST (49 B019 9A0) to data link connector.
4. Connect tachometer to data link connector terminal IG-.

ADJUSTMENT

NOTE: If SST is not used, connect jumper wire between terminals TEN and GND of data link connector.

1. Set SST switch A to position 1 and test switch to SELF TEST. Verify idle speed is within specification:

IDLE SPEED: 650 ± 50 rpm

2. If adjustment is needed, turn air adjusting screw until idle rpm is correct.

NOTE: Check and adjust idle speed with coolant can NOT running.

3. Disconnect SST or remove jumper wire.