LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Porsche >> 1987 >> 928 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - BOSCH LH >> Testing >> Test 6 - Temp. Sensor II/EZF Side Of Engine Temp. Sensor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test 6 - Temp. Sensor II/EZF Side Of Engine Temp. Sensor

Pull off EZF ignition control unit plug. Connect ohmmeter on terminal No. 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.