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Home >> Porsche >> 1985 >> 928 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH LH >> Testing >> Test 6 >> Temperature Sensor II/EZF Side Of Engine Temperature Sensor
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Temperature Sensor II/EZF Side Of Engine Temperature Sensor

Pull off EZF control unit plug. Connect ohmmeter on terminal 23 and ground. Using ohmmeter, check test values of TEST 5. If test values are not reached, repeat test directly on sensor. DO NOT connect ohmmeter on both contact plugs.

NOTE: Temperature sensor II advances ignition timing in partial load range with cold engine for better acceleration.