Electronic Engine Controls - 3.0l (4v) Mercury Mariner II рестайлинг

Material Specifications

MATERIAL SPECIFICATIONS

Torque Specifications

TORQUE SPECIFICATIONS

The electronic engine controls consist of the

1. PCM.
2. Camshaft Position (CMP) sensor.
3. Crankshaft Position (CKP) sensor.
4. Mass Air Flow (MAF) sensor.
5. Cylinder Head Temperature (CHT) sensor.
6. Heated Oxygen Sensor (HO2S).
7. Catalyst Monitor Sensor (CMS).
8. Variable Camshaft Timing (VCT) oil control solenoid.
9. Knock Sensor (KS) (cylinder-block mounted).
10. KS (cylinder-head mounted).
11. Manifold Absolute Pressure (MAP) sensor.

The PCM carries out the following functions

1. accepts input from various engine sensors to compute the fuel flow rate necessary to maintain a prescribed air/fuel ratio throughout the entire engine operational range.
2. outputs a command to the fuel injectors to meter the appropriate quantity of fuel.

The CMP sensor

1. sends the PCM a signal indicating camshaft position used for fuel synchronization.

The CKP sensor

1. sends the PCM a signal indicating crankshaft position.
2. is essential for calculating spark timing.

The MAF sensor

1. uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool.

The CHT sensor

Note. If the cylinder head is being replaced, the CHT must be replaced.

1. sends the PCM a signal indicating engine temperature.
2. resistance decreases as coolant temperature increases.

The HO2S

1. creates a voltage signal dependent on exhaust oxygen content.
2. provides feedback information to the PCM used to calculate fuel delivery.

The CMS

1. monitors oxygen content after it flows through the catalytic converter.
2. provides a voltage to the PCM used to calculate catalytic converter integrity.

The VCT oil control solenoid

1. is an electrically controlled hydraulic valve that directs engine oil to the variable camshaft. Once the PCM transmits a signal, the solenoid moves a valve spool, directing oil into the camshaft phaser cavity. This action changes valve timing by either inducing an advance or retard condition. The camshaft is, thereby repositioned in relation to crankshaft timing and allows for optimum engine performance and lower emissions.

The KS

Note. There are 2 KS , one is located on the RH cylinder head and one is mounted on the engine block in the intake manifold valley.

1. is used to detect engine detonation.
2. sends a voltage signal to the PCM.
3. is able to provide a signal which retards the ignition timing, as necessary.

The MAP sensor

1. measures manifold vacuum and converts it to an electrical signal. This provides the PCM information on engine load.

PCM DTC Chart

PCM DTC CHART

MATERIAL SPECIFICATIONS

Scheme 25

ITEM DESCRIPTION

Removal and Installation

1. Disconnect the Camshaft Position (CMP) sensor electrical connector.
2. Remove the bolt and the CMP sensor. To install, tighten to 10 Nm (89 lb-in). Inspect the O-ring seal and install new as necessary.
3. To install, reverse the removal procedure.

Special Tool(s)

SPECIAL TOOLS Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool

Scheme 26

MATERIAL SPECIFICATIONS

Scheme 27

ITEM DESCRIPTION

Removal

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/mercury/mariner/ii-2011-2011/remont/hoistjack/#jacking-lifting) article.
2. Disconnect the Crankshaft Position (CKP) sensor electrical connector.
3. Remove the bolt and the CKP sensor.

Installation

1. Inspect the O-ring seal and install new as necessary.
2. Install the CKP sensor and bolt. Tighten to 10 Nm (89 lb-in).
3. Connect the CKP sensor electrical connector.
4. Using the scan tool, perform the Misfire Monitor Neutral Profile Correction procedure, following the on-screen instructions.

SPECIAL TOOLS Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool

Scheme 28

ITEM DESCRIPTION

1. Retrieve the module configuration. Carry out the module configuration retrieval steps of the Programmable Module Installation (PMI) procedure. For additional information, refer to «MODULE CONFIGURATION»(ref-434520) article.
2. Detach the wiring harness retainer from the cowl stud bolt.
3. Disconnect the 3 PCM electrical connectors.
4. Remove the 2 bolts and the PCM.
5. Remove and inspect the PCM cowl seal; install new if damaged.

1. Install the PCM cowl seal.
2. Install the PCM and the 2 bolts. Tighten to 8 Nm (71 lb-in).
3. Connect the 3 PCM electrical connectors.
4. Attach the wiring harness retainer to the cowl stud bolt.
5. Restore the module configuration. Carry out the module configuration restore steps of the Programmable Module Installation (PMI) procedure. For additional information, refer to «MODULE CONFIGURATION»(ref-434520) article.
6. Reprogram the PATS . Carry out the Parameter Reset procedure. For additional information, refer to «ANTI-THEFT SYSTEM - ANTI-THEFT PERIMETER»(/mercury/mariner/ii-2011-2011/remont/door-locks-anti-theft-systems/#anti-theft-system-anti-theft-perimeter-except-hybrid) article.
7. Using the scan tool, perform the Misfire Monitor Neutral Profile Correction procedure, following the on-screen instructions.

Scheme 29

ITEM DESCRIPTION

1. Disconnect the Mass Air Flow (MAF) sensor electrical connector.
2. Remove the 2 screws and the MAF sensor. To install, tighten to 2 Nm (18 lb-in).
3. To install, reverse the removal procedure.

Scheme 30

ITEM DESCRIPTION

Note. If the cylinder head is being replaced, the CHT must be replaced.

1. Disconnect the Cylinder Head Temperature (CHT) sensor electrical connector.
2. Remove the CHT sensor. To install, tighten to 11 Nm (97 lb-in).
3. To install, reverse the removal procedure.

Scheme 31

ITEM DESCRIPTION

1. For additional information, refer to the appropriate procedures in this service information.

SPECIAL TOOLS Socket, Exhaust Gas Oxygen Sensor 303-476 (T94P-9472-A)

MATERIAL SPECIFICATIONS

LH Heated Oxygen Sensor (HO2S)

Scheme 32

Scheme 33

Scheme 34

Scheme 35

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/mercury/mariner/ii-2011-2011/remont/hoistjack/#jacking-lifting) article.
2. Remove the 7 bolts (5 shown in illustration) and the LH splash shield. To install, tighten to 10 Nm (89 lb-in).
3. Disconnect the LH Heated Oxygen Sensor (HO2S) electrical connector.
4. Using the Exhaust Gas Oxygen Sensor Socket, remove the LH HO2S. Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the illustration. To install, tighten to 48 Nm (35 lb-ft). RH HO2S
5. Disconnect the RH HO2S electrical connector.
6. Using the Exhaust Gas Oxygen Sensor Socket, remove the RH HO2S . Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the illustration. To install, tighten to 48 Nm (35 lb-ft). All HO2S
7. To install, reverse the removal procedure.

SPECIAL TOOLS Socket, Exhaust Gas Oxygen Sensor 303-476 (T94P-9472-A)

MATERIAL SPECIFICATIONS

Scheme 36

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/mercury/mariner/ii-2011-2011/remont/hoistjack/#jacking-lifting) article.
2. Disconnect the Catalyst Monitor Sensor (CMS) electrical connector.
3. Using the Exhaust Gas Oxygen Sensor Socket, remove the CMS. Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the illustration. . To install, tighten to 48 Nm (35 lb-ft).
4. To install, reverse the removal procedure.

Scheme 37

ITEM DESCRIPTION

1. Remove the LH or RH valve cover. For additional information, refer to «ENGINE MECHANICAL - 3.0L (4V)»(/mercury/mariner/ii-2011-2011/remont/mechanical/#engine-mechanical-30l-4v) article.
2. Remove the 2 bolts and the Variable Camshaft Timing (VCT) oil control solenoid. To install, tighten to 10 Nm (89 lb-in).
3. To install, reverse the removal procedure.

Scheme 38

ITEM DESCRIPTION

Scheme 39

ITEM DESCRIPTION

Cylinder head-mounted Knock Sensor (KS)

1. Disconnect the Knock Sensor (KS) electrical connector.
2. Remove the bolt and the KS . Engine block-mounted KS
3. Remove the lower intake manifold. For additional information, refer to «ENGINE MECHANICAL - 3.0L (4V)»(/mercury/mariner/ii-2011-2011/remont/mechanical/#engine-mechanical-30l-4v) article.
4. Disconnect the KS electrical connector.
5. Remove the bolt and the KS .

Engine block-mounted KS

1. Install the KS and the bolt. Tighten to 25 Nm (18 lb-ft).
2. Connect the KS electrical connector.
3. Install the lower intake manifold. For additional information, refer to «ENGINE MECHANICAL - 3.0L (4V)»(/mercury/mariner/ii-2011-2011/remont/mechanical/#engine-mechanical-30l-4v) article. Cylinder head-mounted KS
4. Install the KS and the bolt. Tighten to 25 Nm (18 lb-ft).
5. Connect the KS electrical connector.

Scheme 40

ITEM DESCRIPTION

1. Disconnect the Manifold Absolute Pressure (MAP) sensor electrical connector.
2. Remove the bolt and the MAP sensor. To install, tighten to 6 Nm (53 lb-in). When installing the sensor, if the bolt fails to hold specified torque, relocate the sensor and retain, using the auxiliary bolt hole in the upper intake manifold.
3. To install, reverse the removal procedure.

See also:
• ENGINE COOLING
• CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS
• CHARGING SYSTEM
• CRUISE CONTROL SYSTEM
• AUTOMATIC TRANSAXLE/TRANSMISSION - 6F35
• INTRODUCTION
• JACKING & LIFTING
• ANTI-THEFT SYSTEM - ANTI-THEFT PERIMETER
• ENGINE MECHANICAL - 3.0L (4V)