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P0190, P0192, P0193 FRP SENSOR EC-921 < DTC/CIRCUIT DIAGNOSIS > [MR EXCEPT FOR NISMO RS MODELS] C D E F G H I J K L M A EC N P O 6. CHECK FRP SENSOR SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between FRP sensor harness connector and ECM harness connector. 4. Also check harness for short to ground and to power. YES >> GO TO 7. NO >> Repair or replace error-detected parts. 7. CHECK FRP SENSOR Check the FRP sensor. Refer to EC-921, "Component Inspection" . Is inspection result normal? YES >> Check intermittent incident. Refer to GI-45, "Intermittent Incident" . NO >> Repair or replace error-detected parts. Component Inspection INFOID:0000000012198417 1. CHECK FRP SENSOR WITH CONSULT 1. Turn ignition switch OFF. 2. Reconnect harness connector disconnected. 3. Start the engine. 4. Select “DATA MONITOR” mode of “ENGINE” using CONSULT. 5. Check that the “FUEL PRES SEN V” indication. WITHOUT CONSULT 1. Turn ignition switch OFF. 2. Reconnect harness connector disconnected. 3. Start the engine. 4. Check FRP sensor signal voltage. Is the inspection result normal? YES >> INSPECTION END. NO >> Replace FRP sensor. Refer to + − Continuity FRP sensor ECM Connector Terminal Connector Terminal F7 2 F23 25 Existed Monitor Item Condition Values/Status FUEL PRES SEN V Engine speed: Idle 1,140 – 1,460 mV Engine speed: Revving engine from idle to 4,000 rpm 1,300 – 2,900 mV ECM Condition Value (Approx.) Connector + − Terminal F23 25 13 [Engine is running] 1.14– 1.46 V [Engine is running] 1.3 – 2.9 V |