Mazda 3 Service Manual: Crankshaft Position (CKP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
Removal
CAUTION:
-
When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing.
-
Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Perform the following procedure for easier access.
a. Remove the aerodynamic under cover No.2..
b. Remove the front splash shield (RH)..
4. Disconnect the CKP sensor connector.
5. Remove the CKP sensor.
Installation
CAUTION:
-
When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing.
-
Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.
1. Perform the following procedure so that cylinder No.1 is at TDC.
a. Remove the wheel and tire (front right side).
b. Disconnect the drive shaft (RH) from joint shaft, set the drive shaft (RH) out of the way. (MTX).
c. Remove the cylinder block lower blind plug and install the SST
.
d. Rotate the crankshaft pulley clockwise until the crank weight contacts the SST
so that cylinder No.1 is at TDC.
2. Fit the center of the CKP sensor with the fifth tooth (counting counterclockwise from the empty space A as shown in the figure) of the pulse wheel.
CAUTION:
-
If the line is not accurately drawn, ignition timing, fuel injection and other engine control systems will be adversely effected. Draw the straight line carefully using a straight edge.
3. Align the center line of the CKP sensor and the line drawn in Step 2, then install the sensor.
4. Install the CKP sensor fitting bolts.
5. Remove the SST
then install the cylinder block lower blind plug.
6. Install the drive shaft (RH). (MTX).
7. Install the wheel and tire (front right side).
Crankshaft Position (CKP) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Visual Inspection
CAUTION:
When foreign material such as an iron chip is on the CKP sensor, it can cause
abnormal output from the sensor because of flux turbulence and adversely affect
...
Engine Coolant Temperature (ECT) Sensor Inspection [Mzr 2.0, Mzr 2.5]
ECT Sensor No.1
Resistance inspection
WARNING:
When the engine is hot, it can badly burn. Turn off the engine and wait until
it is cool before removing the ECT sensor.
1. Remove the ...
Other materials:
Hole Cover Removal/Installation
With Car-navigation system
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper column cover.
b. Instrument cluster.
c. Center panel.
d. Center cover.
e. Dashboard upper panel.
f. Multi information display.
3. Pull the hole cover in the direction of arr ...
Rear Wiper Motor Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear wiper arm and blade.
b. Liftgate upper trim.
c. Liftgate side trim.
d. Liftgate lower trim.
3. Disconnect the rear wiper motor connector.
4. Remove the bolts, then remove the rear wiper motor.
5. Re ...
Ion Sensor Inspection [Skyactiv G 2.0]
DTC Inspection
NOTE:
Because the ion sensor is integrated in the ignition coil, replacing the
ion sensor includes replacement of the ignition coil/ion sensor.
1. Connect the M-MDS to the DLC-2.
2. Perform the DTC inspection using the M-MDS..
If any DTC related to the ...
