Golf GTI L4-1781cc 18L SOHC (HT) (1985) Throttle Position Switch Information
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lift sensor plate with VW 1348/1 up to lower edge (on fuel distributor side) of air flow sensor
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install potentiometer 1 and tighten screws just enough so that adjustment is still possible
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connect digital multimeter with measuring wire VW 1501
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set US 1119 switch to DCV 20
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turn ignition ON
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adjust potentiometer so that reading shows 0.2-0.3 Volt, then tighten retaining screws
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lift sensor plate up to stop; digital-multimeter US 1119 must show approx. 7 Volts
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seal screws with sealing compound or paint
Full throttle switch, checking and adjusting
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switch ignition ON
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open throttle valve completely
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measure voltage between connector (3) and adapter VW 1501
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specification: approximately Battery Voltage
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attach pointer for 3084 to throttle body
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attach Protractor 3084 to primary throttle valve shaft, remove nut if necessary
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open throttle plate fully, and zero protractor
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close throttle valve approx. 20~. Slowly push back in the direction of full throttle (see arrow) until full throttle switch turns ON
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specification 10~ +/- 2~. Before full throttle
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adjust switch point if necessary, by adjusting full throttle switch (5)
Note
Full throttle lever must lie on the diagonal of the full throttle switch lever.