P2021

Y62y2 (Fuel injector cylinder 2) (P0202)

Test 1: Check component Y62 (Fuel injectors).

1. Check component Y62 (Fuel injectors).

Test 1.1: Check component Y62y2 (Fuel injector cylinder 2).

1.1. Check component Y62y2 (Fuel injector cylinder 2).
Safety note
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 1.1.1: Test actuation of component Y62y2 (Fuel injector cylinder 2).

Test 1.1.2: Check internal resistance of component Y62y2 (Fuel injector cylinder 2).

Test 1.1.3: Test leaktightness and ejection pattern of component Y62y2 (Fuel injector cylinder 2).

1.1.1. Test actuation of component Y62y2 (Fuel injector cylinder 2).
Warning!Communication with ECU required.


1.1.2. Check internal resistance of component Y62y2 (Fuel injector cylinder 2).
Check internal resistance of component Y62y2 (Fuel injector cylinder 2).
Test prerequisite

- Fault code 'P2021' present
Test sequence

- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Connect socket box (35-pin) to component N3/10 (ME-SFI [ME] control unit).
- Measure resistance with multimeter between socket (2.19) 28 of the 126-pole socket box tester and (5.9) 9 of the 35-pole socket box tester.
Specified value

- Resistor[16...20]ohms
Question

- Is the measurement value OK?


YES
The measurement value is OK.Note

- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose contact and corrosion..


NO
The measurement value is not OK.Test sequence

- Switch off ignition.
- Connect shop-made test cable set to component Y62y2 (Fuel injector cylinder 2).
- Measure resistance with multimeter between pins (Y62) 1 and (Y62) 2
Specified value

- Resistor[14...20]ohms
Question

- Is the measurement value OK?


YES
The measurement value is OK.Possible cause and remedy

- Lines to component Y62y2 (Fuel injector cylinder 2)


NO
The measurement value is not OK.Possible cause and remedy

- Y62y2 (Fuel injector cylinder 2)


1.1.3. Test leaktightness and ejection pattern of component Y62y2 (Fuel injector cylinder 2).
Test leaktightness and ejection pattern of component Y62y2 (Fuel injector cylinder 2).
Test sequence

- Switch off ignition.
- Remove fuel rail together with component Y62 (Fuel injectors).
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Connect socket box (35-pin) to component N3/10 (ME-SFI [ME] control unit).
- Insert bridge.:
- Bridge between socket (5.5) 5 of the 35-pole socket box tester and socket (4.28) 113 of the 126-pole socket box tester.
- Switch on ignition.
- Component M3 (Fuel pump) runs.
Specified value

- Component Y62y2 (Fuel injector cylinder 2) must not drip.
Question

- Was the test o.k.?


YES
Test prerequisite

- Fuel pressure is OK.
Test sequence

- Switch off ignition.
- Insert bridge.:
- Bridge between socket (5.5) 5 of the 35-pole socket box tester and socket (4.28) 113 of the 126-pole socket box tester.
- Switch on ignition.
- Component M3 (Fuel pump) runs.
- Hold component Y62y2 (Fuel injector cylinder 2) 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

- Y62y2 (Fuel injector cylinder 2)
End of test

NO
The test was not okay.Possible cause and remedy

- Y62y2 (Fuel injector cylinder 2)
End of test