Y62y3 (Fuel Injector Cylinder 3)
Y62y3 (Fuel Injector Cylinder 3) (P0203)
Check Component Y62 (Fuel Injectors).
Check Component Y62y3 (Cylinder 3 Injector).
Warning! Risk of explosion, poisoning and injury!Fuels are highly inflammable and toxic if inhaled. Fuels may cause skin damage. fuel vapors are explosive, invisible and spread out at floor level; they are toxic if inhaled and produce giddiness and an anaesthetizing effect.
Rules of conduct and protective measures
- Wear suitable protective clothing.
- Pay attention to national safety precautions and regulations.
- No fire, sparks, naked flames and smoking.
- Ensure the work place is adequately ventilated.
- Never drain or pour in fuels over assembly pits.
- Store drained fuel in a suitable and sealed vessel.
- Immediately eliminate any fuel which has flowed out.
First-aid measures
- Clean moistened skin with water and soap.
- Change moistened clothing as quickly as possible.
- If fuel gets into your eyes, rinse out your eyes immediately with water and contact a doctor if necessary.
Test 1 Test Actuation of Component Y62y3 (Cylinder 3 Injector).
Test 2 Check Component Y62y3 (Cylinder 3 Injector) Using Actual Value.
Test 3 Test Internal Resistance of Component Y62y3 (Cylinder 3 Injector).
Test 4 Inspect Component Y62y3 (Cylinder 3 Injector) For Leaks.
Test 5 Inspect Operation and Spray Pattern of Component Y62y3 (Cylinder 3 Injector).
Test 6 Test Signal Voltage of Component Y62y3 (Cylinder 3 Injector).
1 Test Actuation of Component Y62y3 (Cylinder 3 Injector).
Test requirement
- The engine is running.
Note: Component M4/3 (engine/AC electric suction fan) runs with an on/off ratio of 50 % during the actuations for safety reasons.
Note! Communication with ECU required.
2 Check Component Y62y3 (Cylinder 3 Injector) Using Actual Value.
Test sequence
- Run engine.
Note
- The actual value indicated (Injection time, right) represents the internal computed quantity in control module ME motor electronics. This means that the actual value is displayed irrespective of the function of the injectors.
Status of the relevant actual values:
- Temperature of coolant: Note! Communication with ECU required
- Injection time, right: Note! Communication with ECU required
- Injection time, left: Note! Communication with ECU required
Specified values
- 20 °C The value is ms at a coolant temperature of approx. [7...12] and when engine is started.
- 80 °C The value is ms at a coolant temperature of approx. [2.7...4.4] and when engine is idling.
- 80 °C The value is ms at a coolant temperature of approx. [14.0...20.0] and when the throttle is blipped.
Question
- Are the actual values o.k.?
Yes
The actual values are okay.
Further possible causes of fault
- Test wiring to component Y62y3 (Cylinder 3 injector) .
- Test internal resistance of component Y62y3 (Cylinder 3 injector) .
- Inspect component Y62y3 (Cylinder 3 injector) for leaks.
- Inspect operation and spray pattern of component Y62y3 (Cylinder 3 injector) .
No
Question
- Fault code present P2022?
Yes
The actual values are not okay.
Possible cause and remedy
- Test wiring to component Y62y3 (Cylinder 3 injector) .
- Test internal resistance of component Y62y3 (Cylinder 3 injector) .
No
The actual values are not okay.
Possible cause and remedy
- Inspect component Y62y3 (Cylinder 3 injector) for leaks.
- Inspect operation and spray pattern of component Y62y3 (Cylinder 3 injector) .
** End of Test **
3 Test Internal Resistance of Component Y62y3 (Cylinder 3 Injector).
Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI control module).
- Connect socket box (35-pin) to component N3/10 (ME-SFI control module).
- (2.21) Pin 30 of 126 <--> Pin 9 of 35 (5.9)
Specified value
- Resistor[14...18] ohms
Question
- Is the measured value okay?
Yes
The measured value is o.k.
Note
- If stored faults present with high fault frequency counter or if customer complaints exist, inspect cables and plug connections for loose contact and corrosion.
No
The measured value is not o.k.
Test sequence
- Switch off ignition.
- (Y62) 1 <--> 2 (Y62)
Specified value
- Resistor[14...18] ohms
Question
- Is the measured value okay?
Yes
The measured value is o.k.
Possible cause and remedy
- Leads to component Y62y3 (Cylinder 3 injector)
No
The measured value is not o.k.
Possible cause and remedy
- Y62y3 (Cylinder 3 injector)
** End of Test **
4 Inspect Component Y62y3 (Cylinder 3 Injector) For Leaks.
Figure legend
- 055 Measuring beaker
- Y62 (Fuel injectors)
Test sequence
- Switch off ignition.
- Remove fuel rail together with component Y62 (Fuel injectors).
- Connect socket box (35-pin) to component N3/10 (ME-SFI control module).
- Connect socket box (126-pin) to component N3/10 (ME-SFI control module).
- (5.7) Pin 7 of 35 <--> Pin 121 of 126 (4.36)
- Switch on ignition.
Specified value
- Component Y62y3 (Cylinder 3 injector) must not drip.
Question
- Was the test o.k.?
Yes
The test was okay.
Further possible causes of fault
- Inspect operation and spray pattern of component Y62y3 (Cylinder 3 injector).
No
The test was not okay.
Possible cause and remedy
- Y62y3 (Cylinder 3 injector)
** End of Test **
5 Inspect Operation and Spray Pattern of Component Y62y3 (Cylinder 3 Injector).
Figure legend 1
- 001 Sockets of component N3/10 (ME-SFI control module)
- 048 Shop-made tool(Test wiring harness)
- 050 126-pin socket box
- 055 Measuring beaker
- 108 Test cable N3/10 (ME-SFI control module)
- N3/10 (ME-SFI control module)
- II 1/63 Connection Test cable
- II 64/126 Connection Test cable
Figure legend 2 (Shop-made tool)
- 1x Clutch 140 545 35 28
- 2x Contact spring 004 545 56 26
- 1x Red banana connector
- 1x Black banana connector
- 2,2 m Red cable with diameter 1,5 mm (Pin 1)
- 2,2 m Brown cable with diameter 1,5 mm (Pin 2)
- 2 m Insulation sheathing with diameter 6 mm
Test sequence
- Switch off ignition.
- Remove fuel rail together with component Y62 (Fuel injectors).
- Connect socket box (35-pin) to component N3/10 (ME-SFI control module).
- Connect socket box (126-pin) to component N3/10 (ME-SFI control module).
- Insert bridge.:
- (5.7) Pin 7 of 35 <--> Pin 121 of 126 (4.36)
- Switch on ignition.
- Note: Component M3 (fuel pump) runs.
- Hold component Y62y3 (Cylinder 3 injector) in a vessel and briefly operate manually with shop-made test cable set at sockets 5 and 9 of the 35-pin socket box.
Specified value
- Fuel injectors should eject fuel uniformly.
Question
- Was the test o.k.?
Yes
The test was okay. ** End of Test **
No
The test was not okay.
Possible cause and remedy
- Y62y3 (Cylinder 3 injector)
** End of Test **
6 Test Signal Voltage of Component Y62y3 (Cylinder 3 Injector).
Test sequence
- Switch off ignition.
- ConnectionMeasuring system
- (2.21) Pin 30 of 126 <--> Pin 9 of 35 (5.9)
- Run engine.
Note
- Measuring system:Continue with key F2
Note
- Measuring system HMS990 integrated in STAR DIAGNOSIS, is required for performing the next test step.Switch on measuring system HMS990 for this step.Continue with key F3
- If measuring system HMS990 is not integrated in your STAR DIAGNOSIS, it is also possible to carry out the next tests with alternative measuring equipment such as oscilloscope, pressure gage or digital multimeter.Continue with key F4
Question
- Is measuring system HMS990 to be started?
Question
- Is the measured value okay?
Yes
The measured value is o.k. ** End of Test **
No
The measured value is not o.k.
Possible cause and remedy
- Cable N3/10 (ME-SFI control module) - Y62y3 (Cylinder 3 injector) has loose contact, corrosion or is damaged.
- N3/10 (ME-SFI control module)
** End of Test **