SsangYong Rexton. Manual - part 145

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DI ENG SM - 2004.4

4-1. High Pressure System Pressure Test

Fuel Rail Pressure Test

1. Disconnect the fuel rail pressure sensor connector and

IMV connector.

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2. Install the pressure tester in tool kit to the fuel rail

pressure sensor connector.

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3. Crank the engine for 5 seconds (twice).

- Read the maximum pressure displayed on the tester.

- If the maximum pressure is below 1,050 bar, refer to

“Fuel System Check Process” section.

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DI ENG SM - 2004.4

How To Use Pressure Tester

1. Check if the “TEST?” is displayed on the display when

pressing the “

” button.

Note

The fuel rail pressure can be measured through the scan
tool.

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2. The maximum pressure will be displayed when pressing

the button while cranking the engine (around 4 seconds
elapsed from 5 seconds).

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DI ENG SM - 2004.4

4-2. Transfer Fuel System Test

Test Procedures

1. All wiring harnesses, connectors and fuel lines should

be installed properly and the engine should be ready to
start.

2. Prepare the special tools for transfer fuel system test

and thoroughly clean the system.

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3. Disconnect the key connector for connecting the priming pump to fuel filter and install both connectors of the

special tool to the fuel pump and the priming pump hoses.

4. Start the engine and visually check the transfer line for clogged and air bubbles while running the engine at idle

speed.

5. If the fuel flows are not smooth or air bubbles are found in fuel lines, locate the leaking area and correct it.

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DI ENG SM - 2004.4

4-3. Static Test for Injector Back leak Volume

1. Remove the injector return hose and seal the openings with screw type caps (included in tool kit).

2. Install the hoses from back leak test containers to return

nipples of injector.

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3. Disconnect the IMV connector in H/P pump and the fuel

pressure sensor connector.