Engines / UDS Engines by part number / 01 - Engine [EV_ECM16TDI02103L997557R 003004] / Test of air mass sensor (G70)

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Mark	Model	Control unit	Diagnostic operation

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

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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!!!

Part 2 of the order number Select the first six 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 enter the ordering number from the control unit packaging here!!!

Select the first six 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 enter the ordering number from the control unit packaging here!!!

Part 3 of the order number Select the first nine 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 ordering number field. Do not enter the ordering number from the control unit packaging here!!!

Select the first nine 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 ordering number field. Do not enter the ordering number from the control unit packaging here!!!

Part 4 of the order number Select the order number of the engine control unit. This number can be found in the VCDS after connecting to the uniform in the SW ordering number field. Do not insert the ordering number from the control unit packaging here!!!

Select the order number of the engine control unit. This number can be found in the VCDS after connecting to the uniform in the SW ordering 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:
- air filter = clean
- intake system - tightness of line
- engine speed - idling
- coolant temperature > XX°C

Note:
- 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-ENGXXXXXX - Air mass - actual value (mg/stroke)-MAF_MES

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

required value:

XXX - XXX mg/inject. (actual value - Air mass)

from XXXX rpm, accelerate in Xrd gear to about XXXX rpm - full load

required value:

XXX - XXXX mg/inject. (actual value - Air mass)

if values are not achieved - check component:

- Intake air mass sensor
- tightness of line
- filling pressure

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