Engine Control System - Turbo: Removal & Installation Hyundai Veloster I

Removal

Note. When replacing the ECM, the vehicle equipped with immobilizer must be performed the procedure as below. [In the case of installing used ECM] Perform "Neutral mode" procedure with GDS. (Refer to " IMMOBILIZER SYSTEM ") Insert the key and turn it to the IGN ON and OFF position. Then the ECM key register process is completed automatically. [In the case of installing new ECM] Insert the key and turn it to the IGN ON and OFF position. Then the ECM key register process is completed automatically.

Scheme 292

Scheme 293

Scheme 294

1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Disconnect the ECM Connector (A).
3. Remove the battery (Refer to " «BATTERY»(ref-609293-S32339350752014041600000) ").
4. Remove the mounting bolts and nut, and then remove the ECM assembly (A).
5. Remove the ECM (B) after removing 4 nuts (A) from the bracket.

Installation

Note. When replacing the ECM, the vehicle equipped with immobilizer must be performed the procedure as below. [In the case of installing used ECM] Perform "Neutral mode" procedure with GDS. (Refer to " IMMOBILIZER SYSTEM ") Insert the key and turn it to the IGN ON and OFF position. Then the ECM key register process is completed automatically. [In the case of installing new ECM] Insert the key and turn it to the IGN ON and OFF position. Then the ECM key register process is completed automatically.

1. Install in the reverse order of removal. ECM installation nut: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft) ECM bracket installation nut/bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

1. Install in the reverse order of removal. Electronic throttle body Installation bolt: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.7 ~ 7.2 lb-ft)

1. Install in the reverse order of removal. Manifold absolute pressure sensor installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

1. Install in the reverse order of removal.

1. Install in the reverse order of removal. Boost pressure sensor installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

1. Install in the reverse order of removal. Engine Coolant Temperature Sensor installation: 29.4 ~ 39.2 N.m (3.0 ~ 4.0 kgf.m, 21.7 ~ 28.9 lb-ft)

1. Install in the reverse order of removal. Crankshaft position sensor installation bolt: 7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

Scheme 295

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 remove the sensor.

Scheme 296

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 remove the sensor.

1. Install in the reverse order of removal. Camshaft position sensor installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

1. Install in the reverse order of removal. Knock sensor installation bolt: 18.6 ~ 23.5 N.m (1.9 ~ 2.4 kgf.m, 13.7 ~ 17.4 lb-ft)

1. Install in the reverse order of removal. Heated oxygen sensor installation: 39.2 ~ 49.1 N.m (4.0 ~ 5.0 kgf.m, 28.9 ~ 36.2 lb-ft)

1. Install in the reverse order of removal. Rail Pressure Sensor Installation: 30.0 ~ 35.0 N.m (3.0 ~ 3.6 kgf.m, 22.1 ~ 25.8 lb-ft)

Scheme 297

1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Release the residual pressure in fuel line. (Refer to " «RELEASE RESIDUAL PRESSURE IN FUEL LINE»(ref-609301-S41488293332014041600000) ") CAUTION: When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of "Release Residual Pressure in Fuel Line" work.
3. Remove the delivery pipe & injector assembly (Refer to " «DELIVERY PIPE»(ref-609301-S25747883892014041600000) ").
4. Remove the connector (A) and the fixing clip (B), and then separate the injector from the delivery pipe.

Scheme 298

Scheme 299

1. Combustion seal
2. Rubber washer
3. Support disc
4. O-ring CAUTION: Do not reuse the used injector fixing clip. CAUTION: Install the component with the specified torques. Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. CAUTION: Apply engine oil to the injector O-ring. Do not reuse the used injector O-ring. CAUTION: Do not reuse the used bolt. CAUTION: When inserting the injector, be careful not to damage the injector tip. CAUTION: Do not reuse the support disc. Do not reuse the injector rubber washer. When replacing the rubber washer, the steel plate (A) part should be faced the cylinder installation part and the rubber plate (B) part should be faced the injector body part. CAUTION: Do not reuse the combustion seal.

1. Install in the reverse order of removal.

Replacement

The injector combustion seal should be replaced new one to prevent leakage after removing the injector.

Scheme 300

Scheme 301

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Scheme 303

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Scheme 305

1. Remove the combustion seal (A) with a wire cutter. CAUTION: Grip the sealing ring carefully, pull it to form a small loop and then cut it. Be careful not to damage the surface of the valve sleeve with the wire cutter.
2. Before the assembly of the sealing ring the groove must be cleaned using a clean cloth. Any coking of the injector sealing surface must be carefully removed with a brass-wire brush. CAUTION: The surfaces of the new sealing ring must be clean and free of grease.
3. Place the seal installing guide (B) (SST No.: 09353-2B000) on the tip of the injector not to damage the injector tip (A). Push the sealing ring (C) with thumb and index finger over the conical assembly tool until it snaps into the groove. The complete assembly must not take longer than 2 to 3 seconds.
4. To size the sealing ring the injector is first introduced into the sizing tool (A) (SST No.: 09353-2B000) and then pressed and at the same time rotated 180° into the sizing tool.
5. Pull the injector out of the sizing tool by turning it in the reverse direction to that used for the press-in process. CAUTION: Check that the seal ring has not been damaged during assembly to the injector and that no circumferential scratches are present. Do not reuse the combustion seal. The seal must be completely free of grease and oil.
6. Check the combustion seal (A) installation.

1. Install in the reverse order of removal. Purge control solenoid valve bracket installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

1. Install in the reverse order 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)

1. Install in the reverse order of removal.

1. Install in the reverse order of removal. RCV control solenoid valve bracket installation bolt: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

1. Install in the reverse order of removal.