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TROUBLESHOOTING MULTIPORT FUEL INJECTION (MPI) <4A9> 13A-62 Code No. P0130: Oxygen Sensor (Front) System OPERATION • The sensor signal is inputted to the engine-ECU <M/T> or engine-CVT-ECU <CVT> (terminal No. • The oxygen sensor (front) (terminal No. 2) is earthed with engine-ECU <M/T> or FUNCTION • The oxygen sensor converts the concentration of oxygen in the exhaust emission into a voltage • When the air-fuel ratio is richer than the theoreti- cal air-fuel ratio, the oxygen sensor outputs a • In response to the signal, the engine-ECU <M/T> or engine-CVT-ECU <CVT> controls the fuel TROUBLE JUDGMENT Check Conditions • Above 5 minutes later after the engine has started up. • The engine coolant temperature is above 82°C for 5 seconds or longer <M/T>. • The engine speed is above 1,200 r/min for 5 sec- onds or longer <M/T>. AK503587 1 2 4 3 19 21 20 18 17 16 15 14 1213 11 8 9 L 10 37 38 39 404142434445464748495051 22 23 24 252627282930313233343536 7 5 3 1 6 4 2 Oxygen sensor (front) Y GR From engine control relay 3 2 4 1 49 34 A-122 A-114 Engine-ECU <M/T> or To engine-ECU <M/T> or AC Wire colour code Oxygen Sensor Circuit (front) Main Index Group TOC |