Mass Air Flow (MAF) Sensor -G70-, Checking

Mass Air Flow (MAF) sensor -G70-, checking






Special tools and equipment

- VAG 1526 A
- VAG 1594 A
- VAG 1598/31
- VAS 5051 with VAS 5051/1

Test requirements:

- Engine coolant temperature at least 80 degree C.
- Electrical accessories switched off (radiator fan must not run during the test).
- Air conditioning switched off.

Checking function

- Connect testing and information system VAS 5051 and select vehicle system "01 -Engine electronics" in selection. Engine must be running at idling speed. Connecting VAS 5051 Scan Tool

Display on VAS 5051:







- Under -1- select diagnostic function "04 - Basic setting".

Display on VAS 5051:







1 - Enter display group max. input value = 255
- Enter "002" for "display group number 002" in zone -2- and confirm entry by pressing -Q- button.

Display on VAS 5051:







- Activate basic setting by pressing -A- button.
- Check specifications for load recognition in display zones -3- and -4-.

All models

Display Group 002:

- Exit function "04 - Basic setting" by pressing <- button.

Evaluation of display group 002

Display Zone 3 - 4: