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EC-138 < COMPONENT DIAGNOSIS > [HR16DE (WITH EURO-OBD)] P0102, P0103 MAF SENSOR 3. Start engine and warm it up to normal operating temperature. 4. Check the voltage between ECM harness connector terminals as follows. *: Check for linear voltage rise in response to engine being increased to about 4,000 rpm. Is the inspection result normal? YES >> INSPECTION END NO >> Clean or replace mass air flow sensor. (+) (–) Condition Voltage Connector Terminal Connector Terminal F11 45 (MAF sensor) F11 52 Ignition switch ON (Engine stopped.) Approx. 0.4V Idle (Engine is warmed-up to normal operat- 1.0 - 1.3V Idle to about 4,000 rpm 1.0 - 1.3V to Approx. 2.4V* |