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Engine Control System Components: Removal & Installation Hyundai Equus II

Testing & Diagnostics 14 illustrations ~865 words

Removal

Note. In the case of the vehicle equipped with immobilizer, perform "Key Teaching" procedure together (Refer to TEACHING MODE PROCEDURE DESCRIPTION (STEP BY STEP) ).

Scheme 100

Scheme 100: Removal
Scheme 100: Removal

Scheme 101

Scheme 101
Scheme 101
  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Remove the cover on the ECM.
  3. Disconnect the ECM connector (A) and the TCM connector (B).
  4. Remove the ECM & TCM bracket installation bolts (C) and nut (D).
  5. After removing the installation bolts (A), remove the ECM (B) from the bracket.

Installation

Note. In the case of the vehicle equipped with immobilizer, perform "Key Teaching" procedure together (Refer to TEACHING MODE PROCEDURE DESCRIPTION (STEP BY STEP) in BE group).

  1. Installation is reverse of removal. ECM installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft) ECM bracket installation bolt/nut: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
  1. Installation is reverse of removal. Electronic throttle body Installation bolt: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONBe careful not to damage the sensing element and the honey cell.
  1. Installation is reverse of removal. Mass air flow sensor installation bolt: 3.9 ~ 5.9 N.m (0.4 ~ 0.6 kgf.m, 2.9 ~ 4.3 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONBe careful not to damage the sensing element and the honey cell.
  1. Installation is reverse of removal. Intake air temperature sensor installation bolt: 3.9 ~ 5.9 N.m (0.4 ~ 0.6 kgf.m, 2.9 ~ 4.3 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONApply the engine coolant to the O-ring.
CAUTIONInsert the sensor in the installation hole and be careful not to damage the sensor when installing.
  1. Installation is reverse of removal. Engine coolant temperature sensor installation: 19.6 ~ 39.2 N.m (2.0 ~ 4.0 kgf.m, 14.5 ~ 28.9 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONApply the engine oil to the O-ring.
CAUTIONInsert the sensor in the installation hole and be careful not to damage when installation.
  1. Installation is reverse of removal. Crankshaft position sensor installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
WARNINGDON'T remove the camshaft position sensor during engine running or right after engine stops, or a scald by the flowed out engine oil may occur.

Scheme 102

Scheme 102
Scheme 102

Scheme 103

Scheme 103
Scheme 103

Scheme 104

Scheme 104
Scheme 104

Scheme 105

Scheme 105
Scheme 105
  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Disconnect the camshaft position sensor connector (A).
  3. Remove the installation bolt (B), and then vertically remove the sensor from the cylinder head. [Bank 1/Intake] [Bank 1/Exhaust] [Bank 2/Intake] [Bank 2/Exhaust]
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONApply the engine oil to the O-ring.
CAUTIONInsert the sensor in the installation hole and be careful not to damage when installation.
CAUTIONBe careful not to damage the sensor housing and the connector. Be careful not to damage the O-ring.
  1. Installation is reverse of removal. Camshaft position sensor installation bolt: 7.8 ~ 11.8 N.m (0.8 ~ 1.2kgf.m, 5.8 ~ 8.7 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
  1. Installation is reverse of removal. Knock sensor installation bolt: 14.7 ~ 24.5 N.m (1.5 ~ 2.5 kgf.m, 10.9 ~ 18.1 lb-ft)

[Bank 1/Sensor 1]

Scheme 106

Scheme 106: Removal
Scheme 106: Removal
  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Disconnect the heated oxygen sensor connector.
  3. Lift the vehicle.
  4. Remove the heater protector (B) from the catalytic converter after removing the bolt (A).
  5. Remove the heated oxygen sensor (C) with the spanner after lifting the heater protector (B).

[Bank 1/Sensor 2]

Scheme 107

Scheme 107
Scheme 107
  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Disconnect the heated oxygen sensor connector.
  3. Lift the vehicle.
  4. Remove the heated oxygen sensor (A).

[Bank 2/Sensor 1, Bank 2/Sensor 2]

Scheme 108

Scheme 108
Scheme 108

Scheme 109

Scheme 109
Scheme 109
  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Lift the vehicle.
  3. Disconnect the heated oxygen sensor connector (A).
  4. Remove the heated oxygen sensor (B). [Bank 2/Sensor 1] [Bank 2/Sensor 2]
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONDON'T use a cleaner, spray, or grease to sensing element and connector of the sensor because oil component in them may malfunction the sensor performance. Sensor and its wiring may be damaged in case of contacting with the exhaust system (Exhaust Manifold, Catalytic Converter, and so on).
  1. Installation is reverse of removal. Heated oxygen sensor installation: 39.2 ~ 49.1 N.m (4.0 ~ 5.0 kgf.m, 28.9 ~ 36.2 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONApply the engine oil to the injector O-ring.
CAUTIONInspect the injector O-ring when installing.
  1. Installation is reverse of removal. Delivery pipe installation bolt: 9.8 ~ 11.8 N.m (0.9 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONBe careful of foreign material not to flow into the valve.
  1. Installation is reverse of removal. Purge control solenoid valve bracket installation bolt: 9.8 ~ 11.8 N.m (0.9 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

[CVVT Oil Control Valve (Bank 1)]

Scheme 110

Scheme 110: Removal
Scheme 110: Removal

Scheme 111

Scheme 111
Scheme 111
  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the CVVT oil control valve connector (A-Intake) and (B-Exhaust).
  3. Remove the cylinder head cover and the timing chain upper cover [Bank 1]. (Refer to " «CYLINDER HEAD ASSEMBLY»(ref-417715) " in EM group)
  4. Remove the mounting bolt (A), and then remove the valve from the engine.

[CVVT Oil Control Valve (Bank 2)]

Scheme 112

Scheme 112
Scheme 112

Scheme 113

Scheme 113
Scheme 113
  1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the CVVT oil control valve connector (A-Intake) and (B-Exhaust).
  3. Remove the cylinder head cover and the timing chain upper cover [Bank 2]. (Refer to " «CYLINDER HEAD ASSEMBLY»(ref-417715) " in EM group)
  4. Remove the mounting bolt (A), and then remove the valve from the engine.
  1. Installation is the reverse of removal. CVVT oil control valve installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft) CAUTION: Pay attention to color of valve connector (Harness side) and the blue marking on the chain cover when installing. If an OCV is installed on opposite manifold, the engine may be damaged. Connect the CVVT oil control valve connector as below. Intake: OCV component marked blue color and the harness connector. (Gray) Exhaust: OCV component marked nothing and the harness connector. (Black) CAUTION: Install the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. CONNECTOR COLOR REFERENCE CHART Item Component Side Harness Side Chain Cover Mark Intake Black Gray Blue Exhaust Black Black Nothing
CAUTIONInstall the component with the specified torques. Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
CAUTIONBe careful of foreign material not to flow into the valve.
  1. Installation is reverse of removal. Variable intake solenoid valve installation nut: 9.8 ~ 11.8 N.m (1.0~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
  1. Installation is reverse of removal. Fuel pump resister installation bolt: 7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lbf.ft)

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