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ON-VEHICLE SERVICE MULTIPORT FUEL INJECTION (MFI) 13A-315 6. Connect a digital voltage meter between terminal No. 3 and No. 4. 7. While repeatedly racing the engine, measure the oxygen sensor output voltage. Standard value: CAUTION Be very careful when connecting the jumper Be careful the heater is broken when voltage NOTE: If the sufficiently high temperature (of C or more) is not reached although the oxygen sensor is normal, the output 8. If the sensor is defective, replace the oxygen sensor. NOTE: For removal and installation of the oxygen - Exhaust Pipe and Main Muffler INJECTOR CHECK M1131005200327 Check the Operation Sound 1. Use a stethoscope to listen to the operation sound (clicking) of the injectors while the engine is idling CAUTION Beware that the operation sounds of other injec- engine speed. NOTE: If the operating sound cannot be heard, Measurement of Resistance between Ter- 1. Disconnect the injector connector. Standard value: 10.5 - 13.5 W (at 20 C) 3. Connect the injector connector. Check the Injection Condition 1. Following the steps below, bleed out the residual pressure within the fuel pipe line to prevent flow of 2. Remove the injector. Fig. Injector test set (MD998706) Injector test harness (MB991607) Injector test adaptor (MD998741) Clip (MB991608) Engine Oxygen Remarks When 0.6 - 1.0 V If you make the air-fuel - 1.0 V. AK000121 Oxygen sensor MB991658 AC AK300358 1 2 AB Injector Equipment side |