Mazda MX-6 1998, Workshop Manual

Page: 552 / 1282

CONTROL SYSTEM [KL]
7. If the terminal voltage is correct and there is
harness continuity, replace the mass air flow
sensor. (Refer to 0 1 -1 3B INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION [KL].)
Note
• The NGS shows the mass air flow rate and
load value.
Specification
Engine
speed (rpm)
Intake mass air
flow (g/s)
Engine load
calculated value (%)
MTX ATX MTX
ATX
6 0 0 -7 0 0 (Idle) 2.9
—
3.7 2.9— 4.0 19.0— 22.0
1 9 .0 -2 3 .0
Approx. 2,500*
9 .9 -1 2 .1 9 .9 -1 2 .7 1 6 .0 -1 9 .0 1 6 .0 -2 0 .0
* : No load, in neutral
CAMSHAFT POSITION SENSOR INSPECTION [KL]
1. Disconnect the camshaft position sensor
connector.
2. Measure the resistance between terminals A and
B by using an ohmmeter.
W6U140W0E
Specification
Approx. 550 Cl
3. If not as specified, check related wiring harness. If
they are okay, replace the camshaft position
sensor.
W6U140WM8
CAMSHAFT POSITION SENSOR REMOVAL/INSTALLATION KL
1. Disconnect the battery negative cable.
2. Disconnect the camshaft position sensor
connector.
3. Remove the timing belt cover and timing belt.
(Refer to 01-10B TIMING BELT
REMOVAL/INSTALLATION [KL].)
4. Remove the cylinder head cover. (Refer to
01-1 OB CYLINDER HEAD GASKET
REPLACEMENT [KL].)
5. Hold the camshaft by using a wrench on the cast
hexagon as shown, loosen the camshaft pulley
lock bolt.
W6U140W0F
6. Remove the camshaft pulley lock bolt.
7. Remove the camshaft pulley.
8. Remove the camshaft position sensor.
LOCK BOLT
W6U140WMA
9. Install in the reverse order of removal.
Tightening torque
Timing pulley bolt;
123— 140
Nm
{12.5— 14.3
kgf-m,
91— 103
ftlbf}
Sensor bolt: 7.9— 10.7
N
m
{80— 110 kgf-cm, 69.5— 95.4 ft lbf}
W6U140WM9
0 1 -4 0 B -1 7