Jetta GLX Wagon V6-2.8L (AFP) (2001)
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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 Kohms
If the specified value is not obtained:
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Replace Mass Air Flow (MAF) sensor -G70-, item -24-. Refer under "Fuel Delivery and Air Induction/Fuel Injector", See: Fuel Delivery and Air
Induction/Service and Repair
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Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
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Display readiness code.
If there is no malfunction in the wiring and the resistance measurement values are OK:
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Replace Engine Control Module (ECM).