Golf GLS L4-2.0L (AEG) (2001)
Perform resistance measurement on Intake Air Temperature (IAT) sensor -G42-, terminals -1- (signal) and 3 (Ground (GND)).
Scale -A- shows resistance values for temperature range 0-50 °C and scale -B- shows the values for temperature range 50-100 °C.
Examples:
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30 °C is in range -A- and corresponds to a resistance of 1.5-2.0 Kohms
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80 °C is in range -B- and corresponds to a resistance of 275-375 ohms
If the specified value is not obtained:
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Replace Mass Air Flow (MAF) sensor -G70-. Refer to item - 3 -, See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance
Checks/Air Cleaner Housing/Service and Repair
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Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading
Diagnostic Trouble Codes
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing
Diagnostic Trouble Codes
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Display readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes
If there is no malfunction in the wiring and the resistance measurement values are OK:
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Replace Engine Control Module (ECM).