Idle Speed - Mazda MX-5 1990 Workshop Manual

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ENGINE TUNE-UP PROCEDURE
B
05U08X-282
3. If the marks are not aligned, loosen the crank angle sensor
lock bolt and adjust by turning the crank angle sensor.
4. Tighten the crank angle sensor lock bolt.
Tightening torque:
19-25
N·m
(1.9-2.6
m-kg,
14-19
ft-Ib)
5. After adjusting the ignition timing, disconnect the SST or
jumper wire from the diagnosis connector.
6. Increase the engine speed and verify that the ignition tim-
ing advances. _
Idle Speed
Inspection
I
Adjustment
1. Connect the SST or jumper wire to the diagnosis connec-
tor. (Refer to page 8-8.)
2. Verify that the idle speed is within specification.
Idle speed:" 850
±
50 rpm (Neutral)
3. If the idle speed is not within specification, remove the blind
cap from the air adjusting screw and adjust it.
4. After adjusting the idle speed, install the blind cap and dis-
connect the SST or jumper wire from the diagnosis con-
nector.
8-9