Engines / UDS Engines by part number / 01 - Engine [EV_ECM20TDI01104L906026NQ 004003] / Test - Intake air mass sensor - test drive

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Mark	Model	Control unit	Diagnostic operation

Mark

Select a vehicle make or a common group such as Service Intervals, Engines, Transmissions, Immobilizers and Independent Heaters.

Model

Part 1 of the order number Select the first three characters of the order number of the engine control unit. This number can be found in the VCDS when linked to the uniform in the SW order number field. Do not insert the ordering number from the control unit packaging here!!!

Select the first three characters of the order number of the engine control unit. This number can be found in the VCDS when linked to the uniform in the SW order number field. Do not insert the ordering number from the control unit packaging here!!!

Control unit Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Diagnostic operation Select the desired diagnostic procedure.

Diagnostic procedure

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Conditions:
- engine temperature > XX°C
- Error memory empty
- air filter: clean

test drive:
- engaged gear (X) +
- deceleration XXs
- engine speed XXXX -> XXXX

second mechanic necessary.
observe the occupation safety rules when taking a test drive with connected diagnostics tester!!!

connect with the control unit XX - engine

Advanced Measured Values

select item in menu:

IDEXXXXX - accelerator pedal - position
IDEXXXXX - intake air mass: actual value (mg/stroke)

TIP! For easier search in the menu, enter the code IDE, ENG or MAS into the "Filter" window

do a test drive
- engaged gear (X) or (X)
- engine speed = XXXX rpm
- release: accelerator pedal
- deceleration -> engine speed = XXXX rpm

end the test drive

check of error memory

desired condition:
- Error memory empty

upon non--achievement of condition - check component:
- Intake air mass sensor
- wiring: Intake air mass sensor -> control unit
- intake system: tightness of line
- air filter: clean

End of test

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