Golf GTI L4-1781cc 1.8L SOHC (HT) (1985)
FIGURE 4 - THERMOSWITCH LOCATION (A)
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thermoswitch location and checking - Fig. 4
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duty cycle valve location and checking - Page 5
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catalytic converter same as CIS-E engines
FIGURE 1 - CONTROL UNIT/OXYGEN SENSOR
Control unit (1) is installed in the left side of the plenum. The oxygen sensor (2) is positioned in the exhaust manifold.
FIGURE 3 - RELAY LOCATIONS (JETTA)
2 - fuel pump relay 15 - power supply relay for Lambda control 16 - idle speed stabilization relay
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check resistance on contacts specified value: over 28~C (82~F) (infinite) ohms under 15~C (59~F) 0.0 ohms
If NO
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replace thermoswitch
Emission controls, checking (With engine not running) Connecting test equipment