Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN1991GTI L4-1984CC 2.0L DOHC (9A)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR FLOW METER/SENSORSPECIFICATIONS
1991 Volkswagen GTI L4-1984cc 2.0L DOHC (9A)
Air Flow Meter/Sensor: Specifications
1991 Volkswagen GTI L4-1984cc 2.0L DOHC (9A)SECTION Specifications
BASIC ADJUSTMENT
depth measurement from fuel distributor mounting surface-
to sensor plate lever (roller)
0.74 in. ± 0.004 in. (18.8 mm ± 0.1 mm)
SENSOR PLATE FREE PLAY
basic adjustment
(control plunger stop screw) 0.024 in. (0.06 mm)
free play at sensor plate (maximum) 0.118 in. (3.0 mm)
gap at control plunger 0.020 in. (0.5 mm)
SENSOR PLATE REST POSITION
distance from sensor plate at rest (side nearest fuel distributor)-
to top of narrowest diameter of air cone
minimum 0.075 in. (1.9 mm)
maximum 0.118 in. (3.0 mm)
depth measurement from fuel distributor mounting surface-
to sensor plate lever (roller)
0.74 in. ± 0.004 in. (18.8 mm ± 0.1 mm)
SENSOR PLATE FREE PLAY
basic adjustment
(control plunger stop screw) 0.024 in. (0.06 mm)
free play at sensor plate (maximum) 0.118 in. (3.0 mm)
gap at control plunger 0.020 in. (0.5 mm)
SENSOR PLATE REST POSITION
distance from sensor plate at rest (side nearest fuel distributor)-
to top of narrowest diameter of air cone
minimum 0.075 in. (1.9 mm)
maximum 0.118 in. (3.0 mm)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.