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6-1 PIEZO Injector Test
1) Set-up Method
1
2
ECU
4
- Detached injectors and set up the dummy injectors.
- Set up the tube and plastic holder on the injector
return hole.
16
3
3
7
5
6
1
9
8
Tightening Torque
※ Piezo Injector is not an previous Solenoid Type. Piezo injector making satisfy
method of the high exhaust, power and precision.
※ Previous Solenoid Valve needs an oil pressure coupler to help limited
movement of Piezo injector and there is a system to maintain the oil
pressure coupler for the safety maintain of it.
Piezo injector is high reply and power, it is also less exhaust.
■ Set-up
1. Detached Injector ① return Line and attached as left picture by Tube.
2. ② Set-up the dummy resister
※ Why? If control valve of Rail is detached, ECU order to stop the fuel pump by
disconnect the line.
3. ③ Set-up the injector return line connector. ( Install #22
)
CONNECTOR & ADAPTER
※ Why? To avoid PIEZO type injector damage.
4. Detached the injectors form engine and ④ set up the dummy injectors.
5. ⑤ Cleaning the nozzle at end of Injector by sinner
6. ⑥ Attached the test pipe and injector on the rail.
7. ⑦ Connecting the injector wire line.
8. ⑧ Tighten pipe connection to stand up test body.
9. ⑨ Check all connection are right to connect including HP controller
■ Test
1. Keep ignition (engine) on until injected fuel.
2. If not to injected fuel, please check the leaking fuel in any parts.
Test Body Set Up Procedure.
1. Test Pipes installed with Injectors first
then, tighten the test body's holding
screw with injectors. Fix the test pipes
with Injectors & CRDI Rail side.
2. Tie the Test body holding roof on the
bonnet hook then, connect the Return
house & Wire.
3. Install the HP controller and dummy
register.
4. Compare the injection amount of each
by the level of test bodies scale.
PIEZO RETURN LINE
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