Electronic Engine Controls - 2.5l (except Hybrid) Mercury Mariner II рестайлинг

Material Specifications

MATERIAL SPECIFICATIONS

Torque Specifications

TORQUE SPECIFICATIONS

The electronic engine controls consist of the following

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

The PCM

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 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 feedback information to the PCM used to calculate fuel delivery.

The CHT sensor

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

The KS

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 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 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 5

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 7 Nm (62 lb-in). Inspect the O-ring seal and install new as necessary.
3. To install, reverse the removal procedure.

Special Tool(s)

SPECIAL TOOLS Aligner, Crankshaft Sensor 303-1417 Timing Peg, Crankshaft TDC 303-507 Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool

Scheme 6

Scheme 7

General Equipment

GENERAL EQUIPMENT

Scheme 8

ITEM DESCRIPTION

Scheme 9

Scheme 10

Scheme 11

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 5 bolts, the pin-type retainer (not shown in illustration) and the RH splash shield.
3. Turn the crankshaft clockwise until the hole in the crankshaft pulley is in the 3 o'clock position.
4. Remove the engine plug bolt.
5. Install the Crankshaft TDC Timing Peg and turn the crankshaft clockwise until the crankshaft contacts the Crankshaft TDC Timing Peg.
6. Disconnect the Crankshaft Position (CKP) sensor electrical connector.
7. Remove the bolts and the CKP sensor.

Scheme 12

Scheme 13

Scheme 14

1. Install a 6 mm x 18 mm bolt through the crankshaft pulley and thread it into the front cover.
2. Install the CKP sensor and the 2 bolts. Do not tighten the bolts at this time.
3. Adjust the CKP sensor with the Crankshaft Sensor Aligner. Tighten the 2 bolts to 7 Nm (62 lb-in).
4. Connect the CKP sensor electrical connector.
5. Remove the 6 mm x 18 mm bolt from the crankshaft pulley.
6. Install the engine plug bolt. Tighten to 20 Nm (177 lb-in).
7. Install the RH splash shield, 5 bolts and the pin-type retainer (not shown in illustration). Tighten to 9 Nm (80 lb-in).
8. 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 15

ITEM DESCRIPTION

Removal

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.

Installation

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 16

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 10 Nm (89 lb-in).
3. To install, reverse the removal procedure.

Scheme 17

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

Scheme 18

Scheme 19

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 Heated Oxygen Sensor (HO2S) electrical connector.
3. Using the Exhaust Gas Oxygen Sensor Socket, remove the 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).
4. To install, reverse the removal procedure.

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

MATERIAL SPECIFICATIONS

Scheme 20

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 21

ITEM DESCRIPTION

1. Detach the Cylinder Head Temperature (CHT) sensor cover and position aside.
2. Disconnect the CHT sensor electrical connector.
3. Remove the CHT sensor. To install, tighten to 12 Nm (106 lb-in).
4. To install, reverse the removal procedure.

Scheme 22

ITEM DESCRIPTION

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 intake manifold. For additional information, refer to «ENGINE MECHANICAL - 2.5L»(/mercury/mariner/ii-2011-2011/remont/mechanical/#engine-mechanical-25l-except-hybrid) article.
3. Remove the bolt and the Knock Sensor (KS). To install, tighten to 20 Nm (177 lb-in).
4. To install, reverse the removal procedure.

Scheme 23

ITEM DESCRIPTION

1. Remove the valve cover. For additional information, refer to «ENGINE MECHANICAL - 2.5L»(/mercury/mariner/ii-2011-2011/remont/mechanical/#engine-mechanical-25l-except-hybrid) article.
2. Remove the bolt 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.

MATERIAL SPECIFICATIONS

Scheme 24

ITEM DESCRIPTION

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 Manifold Absolute Pressure (MAP) sensor electrical connector.
3. Using a tool like KD Tool #58181 or Lisle T25 Torx Bit, remove the screw and the MAP sensor. To install, tighten to 3 Nm (27 lb-in).
4. 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 - 2.5L