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Engine Control System (L3): Removal & Installation Mazda 6 GH

Testing & Diagnostics 7 illustrations ~295 words

PCM REMOVAL/INSTALLATION [L3]

Note. For PCM replacement, setup the M-MDS and perform the PCM configuration. (See PCM REPLACEMENT [L3] ).

Scheme 29

Scheme 29: PCM REMOVAL/INSTALLATION [L3]
Scheme 29: PCM REMOVAL/INSTALLATION [L3]
  1. Disconnect the negative battery cable.
  2. Remove in the order indicated in the table.
  3. Install in the reverse order of removal.

Scheme 30

Scheme 30: PCM Connector Connection Note
Scheme 30: PCM Connector Connection Note

Scheme 31

Scheme 31
Scheme 31

Scheme 32

Scheme 32
Scheme 32

ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [L3]

WARNINGA hot engine can cause severe burns. Turn off the engine and wait until it is cool before removing the ECT sensor.

Scheme 33

Scheme 33
Scheme 33
  1. Drain the engine coolant. (See «COOLING SYSTEM SERVICE WARNINGS [L3, AJ]»(ref-288761-S27268153682008062500000) ).
  2. Disconnect the ECT sensor connector.
  3. Remove the ECT sensor.
  4. Install in the reverse order of removal. Tightening torque 10-14 N.m {1.02-1.42 kgf.m, 7.38-10.32 ft.lbf}
  5. Refill the engine coolant. (See «COOLING SYSTEM SERVICE WARNINGS [L3, AJ]»(ref-288761-S27268153682008062500000) ).

Removal

  1. Perform the following procedure to making the working space. Remove the Front wheel (RH). Remove the splash shield.
  2. Disconnect the CKP sensor connector.
  3. Remove the installation bolts to remove the CKP sensor.

Installation

CAUTIONWhen 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.

Scheme 34

Scheme 34
Scheme 34

Scheme 35

Scheme 35
Scheme 35
  1. Perform the following procedure so that piston No. 1 is at the top dead center. Remove the front drive shaft (RH). (See «FRONT DRIVE SHAFT REMOVAL/INSTALLATION [L3, L3 WITH TC]»(ref-288766-S32229077222008062500000) ). Remove the cylinder block lower blind plug and install the SST . Turn the crankshaft pulley to the clockwise until it stops.
  2. Install the CKP sensor to the CKP sensor installer.
  3. Fit the forked part of the CKP sensor installer with the fifth tooth (counting counterclockwise from the empty space A as shown in the figure) of the pulse wheel.
  4. Install the CKP sensor fitting bolts. Tightening torque 5.5-7.5 N.m {56-76 kgf.cm, 4.1-5.5 ft.lbf}
  5. Remove the CKP sensor installer
  6. Remove the SST then install the cylinder block lower blind plug. Tightening torque 20 N.m {2.0 kgf.m, 15 ft.lbf}
  7. Install the front drive shaft (RH). (See «FRONT DRIVE SHAFT REMOVAL/INSTALLATION [L3, L3 WITH TC]»(ref-288766-S32229077222008062500000) ).

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