Mazda MX-6 1998, Workshop Manual

Page: 521 / 1282

CONTROL SYSTEM [FS]
7. If the terminal voltage is correct and there is
harness continuity, replace the mass air flow
sensor. (Refer to 0 1 -1 3A INTAKE-AIR SYSTEM
REMOVAL/INSTALLATION [FS].)
Note
• The NGS shows the mass air flow rate and
load value.
Specification
Engine
speed (rpm )
Intake m ass air
flo w (g/s)
E ngine load
c a lcu la te d va lu e (%)
MTX ATX MTX ATX
650-750 (Idle) 1.9-3.0 2.2-3.1 15.0-19.0 18.0-23.0
2460-2540* 6.7—9.1
C
O
"
s
i
I
C
O
b
o
14.0-18.0 17.0-20.0
* : No load, in neutral
CAMSHAFT POSITION SENSOR INSPECTION [FS]
1. Disconnect the camshaft position sensor
connector.
2. Measure the resistance between terminals A and
B by using an ohmmeter.
W 6 U 1 4 0 W 0 S
Specification
Approx. 0.95— 1.25 kft
3. If not as specified, check related wiring harness. If
they are okay, replace the camshaft position
sensor.
Tightening torque
7.9— 10.7 N m
{80— 110 kgf cm, 69.5— 95.4 in lbf}
KNOCK SENSOR INSPECTION [FS]
1. Verify that the ignition switch is at OFF.
2. Disconnect knock sensor connector.
3. Measure the resistance between knock sensor
terminal and the knock sensor body by using an
ohmmeter.
Specification
Approx. 560 k ii [20 °C {68 °F}]
4. If not as specified, replace the knock sensor.
(Refer to 01-40A KNOCK SENSOR
REPLACEMENT [FS].)
KNOCK SENSOR REPLACEMENT [FS]
1. Remove the oil filter element.
2. Use the SST to remove and install the knock
sensor.
W 6 U 1 4 0 W 0 7
Tightening torque
19.6— 34.3 N m {2.0— 3.5 kgf-m, 15— 25 ftlb f}
3. Install the oil filter element.
W6U140WBK
0 1 -4 0 A -1 6