Mazda MX-6 1998, Workshop Manual

Page: 524 / 1282

CONTROL SYSTEM [FS]
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8. If the SST (104 Pin Breakout Box) are used,
check in the following order.
(1) Remove the PCM. (Refer to 01-40A
POWERTRAIN CONTROL MODULE (PCM)
REMOVAL/INSTALLATION [FS].)
(2) Connect the SST (104 Pin Breakout Box) to
the PCM as shown.
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(3) Tighten the connector bolt.
Tightening torque
7.9— 10.7 N m
{80— 100 kgf-cm, 69.5— 95.4 in-lbf}
(4) Verify that the throttle valve is at the closed
throttle position.
(5) Turn the ignition switch to ON.
(6) Rotate the throttle link by hand and adjust the
PCM terminal 89 voltage to specification.
Specification (At closed t hrottle position)
Throttle position sensor
harness side connector
terminal A voltage (V)
PCM terminal 89
voltage (V)
4.5— 4.9
0.4— 0.5
4.9— 5.1
0.4— 0.6
5.1— 5.5 0.5— 0.6
(7) Tighten the attaching screws.
Specification
1.6— 2.3 N m {16— 24 kgf-cm, 14— 21 in-lbf}
(8) When the throttle valve is at the wide open
throttle, verify that the PCM terminal 89
voltage is in the specification.
Specification (At wide open throttle)
Throttle position sensor
harness side connector
terminal A voltage (V)
PCM terminal 89
voltage (V)
4.5—4.7 3.5— 4.4
4.7— 4.8 3.6— 4.5
4.8—4.9 3.7— 4.6
4.9— 5.0 3.7— 4.8
5.0— 5.1 3.8— 4.9
5.1— 5.3
4.0— 5.0
5.3— 5.4
4.1— 5.1
5.4— 5.5 4.2— 5.2
(9) If not as specified, check related wiring
harness. If they are okay, replace the throttle
body.
9. If the SSTs (NGS tester) are used, check in the
following order.
(1) Connect the
SSTs (NGS tester) to the data
link connector.
(2) Verify that the throttle valve is at the closed
throttle position.
(3) Turn the ignition switch to ON.
(4) Select the “PID/DATA MONITOR AND
RECORD” function on the NGS tester display
and press TRIGGER.
(5) Select “TP V” on the NGS tester display and
press START. The NGS tester measures and
shows the voltage.
S p e c ific a tio n (A t c lo s e d t h ro ttle p o s itio n )
Throttle position sensor
harness side connector
terminal A voltage (V)
“TP V” voltage (V)
4.5— 4.9
0.4— 0.5
4.9— 5.1 0.4— 0.6
5.1— 5.5 0.5— 0.6
(6) Tighten the attaching screws.
Specification
1.6— 2.3 N m {16— 24 kgf-cm, 14— 21 in lbf}
(7) When the throttle valve is at the wide open
throttle, verify that the “TP V" voltage is in the
specification.
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H A R N E S S
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