2008-2009 Subaru Impreza WRX and WRX STI Service & Repair Manual

ON BOARD DIAGNOSTICS II INFO

System D *1 Applicable Compo./Sys. # 13 Monitored component misfire fuel system front oxygen sensor rear oxygen sensor evaporative emission control sys. thermostat crankshaft position sensor x engine coolant temperature sensor x manifold absolute pressure sensor x intake air temperature sensor atmospheric pressure sensor vehicle speed sensor starter switch idle air control x fuel tank pressure sensor fuel temperature sensor fuel level sensor EVAP canister purge valve fuel tank pressure control valve EVAP canister vent valve fan control relay Mass air flow sensor x*2 TAC(throttle actuator control valve) x active valve control system x engine oil temperature sensor direct variable valve lift Pressure control valve *1: number is corresponded to component/system on the summary sheet *2: except applicable system within each component 3 - cont Revision Date: CAL LDV CARB Issue Date: Feb/8/2006 Page: 03-D-1 CAN system

SYSTEM E *1 Applicable Compo./Sys. # 1 2 3 4 5 6 7 8 11 12 13 14 14' 18 19 23 40 49 49' 50 51 52 53 60 62 72 80 82 83 84 95 96 99 Monitored component 52' misfire x x x x x x x x fuel system × × × x x front oxygen sensor x x x x *2 x *2 x x x x x × rear oxygen sensor x x x *2 x *2 evaporative emission control sys. x x x x × × thermostat crankshaft position sensor x x *2 x x x camshaft position sensor x x *2 x x engine coolant temperature sensor x x x x x x x x *2 x x x x x x x manifold absolute pressure sensor x x x x x x x x x x x x *2 x x intake air temperature sensor x x x x x x x x x x x atmospheric pressure sensor × × × × × × × *2 vehicle speed sensor x x x x x x x x x x x x neutral switch x x starter switch × x x idle air control valve x x *2 fuel tank pressure sensor x x *2 x fuel temperature sensor x x x *2 fuel level sensor x x x x x x x x x x *2 x mass air flow sensor x x x x x x x x x exhaust temperature sensor EVAP canister purge valve x x x x x x x fuel tank pressure control valve x x EVAP canister vent valve x x x fan control relay x x solenoid valve for tank pressure sensor VVT cam position sensor oil control valve x x control area network (CAN) x x x *1: number is corresponded to component/system on the summary sheet *2: except applicable system within each component Revision Date: Issue Date: Feb/8/2006 Page: 03-E-1 CAL LDV CARB 3 - cont

System E FORESTER 2.5L Turbo IMPREZA 2.5L Turbo LEGACY & OUTBACK 2.5L Turbo Map 2 Enable condition for catalyst monitoring FORESTER 2.5L Turbo & IMPREZA 2.5L Turbo (AT) Intake-manifold pressure (KPa) 0.0 33.3 40.0 53.3 66.7 80.0 93.3 106.7 133.3 160.0 186.7 213.3 PM2SMP (deg C) 0 200 150 80 50 50 50 30 -200 -400 -600 -800 (MT) Intake-manifold pressure (KPa) 0.0 26.7 40.0 53.3 66.7 80.0 93.3 106.7 133.3 160.0 186.7 213.3 PM2SMP (deg C) 0 200 150 80 50 50 50 30 -200 -400 -600 -800 LEGACY & OUTBACK 2.5L Turbo (AT) Intake-manifold pressure (KPa) 0.0 26.7 40.0 53.3 66.7 80.0 93.3 106.7 133.3 160.0 186.7 213.3 PM2SMP (deg C) 0 200 150 100 50 50 50 0 -200 -400 -600 -800 (MT) Intake-manifold pressure (KPa) 0.0 26.7 33.3 53.3 66.7 80.0 93.3 106.7 133.3 160.0 186.7 213.3 PM2SMP (deg C) 0 50 220 150 80 60 50 0 -200 -400 -600 -800 Estimated temperature in the catalyst (catt n ) is defined as below Calculations : every 512ms catt n = ((pmsm + PM2SMP) - catt n-1 ) * CATNAMASI + catt n-1 [deg C] pmsm : Intake-manifold pressure(mmHg) PM2SMP is shown in the tables above. CATNAMASI : 0.04(AT) 0.015(MT) (FORESTER 2.5L Turbo & IMPREZA 2.5L Turbo) CATNAMASI : 0.04(AT) 0.02(MT) (LEGACY & OUTBACK 2.5L Turbo) Map 3-1 Enable condition for misfire monitoring FORESTER 2.5L Turbo & IMPREZA 2.5L Turbo rpm 700 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 6700 AT 26.264 24.665 23.598 26.664 27.331 26.131 29.531 31.331 32.731 34.13 38.197 43.996 49.529 53.329 MT(V. Speed>= 40 mph) 25.065 24.798 25.598 38.263 39.33 38.93 38.53 37.597 39.73 44.263 44.263 44.263 46.996 51.062 MT (V. Speed< 40 mph) 25.065 24.798 23.331 24.665 23.998 25.598 28.798 29.997 31.597 32.531 37.064 41.863 46.929 51.062 (KPa) LEGACY & OUTBACK 2.5L Turbo rpm 700 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 6700 AT 29.33 26.66 26.66 26.66 27.33 28.00 29.53 31.33 32.73 34.13 38.20 44.00 49.53 53.33 MT(V. Speed>= 40 mph) 25.06 24.80 25.60 40.00 40.80 42.13 44.00 44.53 47.33 54.66 54.66 54.66 46.93 51.06 MT (V. Speed< 40 mph) 27.33 23.33 23.60 23.33 24.00 24.40 28.80 30.00 31.60 32.53 37.06 41.86 54.66 54.66 (KPa) Map 5-1 Enable condition for intake air FORESTER 2.5L Turbo & IMPREZA 2.5L Turbo & LEGACY & OUTBACK 2.5L Turbo Engine speed (rpm) idle 800 1200 1600 2000 2400 2800 3200 3600 4000 4400 MAP Value (g/rev) Na 0.228 0.22 0.22 0.22 0.228 0.23 0.234 0.242 0.25 0.25 Issued Date: Feb/8/2006 Page: 03-E-3 Revision Date: Feb/20/2006

System E FORESTER 2.5L Turbo IMPREZA 2.5L Turbo LEGACY & OUTBACK 2.5L Turbo Map 10 Secondary parameter for change of fuel level FORESTER 2.5L Turbo & IMPREZA 2.5L Turbo Fuel level (%) 0.0 16.7 33.3 50.0 66.7 83.3 100.0 change of fuel level (%) 7.0 7.0 6.8 6.7 6.5 6.3 6.3 LEGACY & OUTBACK 2.5L Turbo Fuel level (%) 0.0 15.6 31.3 46.9 62.5 78.1 93.8 change of fuel level (%) 7.8 7.8 7.8 7.8 7.8 7.8 7.8 Issued Date: Feb/8/2006 Page: 03-E-8 Revision Date: Feb/20/2006

2008-2009 Subaru Impreza WRX and WRX STI Service & Repair Manual

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