Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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GD(H4DOTC)-80 Diagnostic Trouble Code (DTC) Detecting Criteria GENERAL DESCRIPTION AS:DTC P013E O2 SENSOR DELAYED RESPONSE - RICH TO LEAN (BANK 1 SENSOR 2) 1. OUTLINE OF DIAGNOSIS Detect the delayed response of rear oxygen sensor output for rich → lean. After the deceleration fuel cut has started, detect the trouble by calculating the time when the rear oxygen sensor output decreases to the predetermined voltages. Judge as NG when the response time is larger than the threshold value. 2. COMPONENT DESCRIPTION 3. ENABLE CONDITIONS 4. GENERAL DRIVING CYCLE Perform diagnosis once during deceleration fuel cut from a constant and high speed driving, when rear oxy- gen sensor is warmed up sufficiently. (A) Electromotive force (B) Air fuel ratio (C) Lean (D) Rich (E) Theoretical air fuel ratio (F) Comparative voltage
(1) Atmosphere (2) Exhaust gas (3) Electromotive force Secondary Parameters Enable Conditions Battery voltage > 10.9 V Rear oxygen sensor closed loop control Operation Engine speed when fuel cut starts ≥ 1000 rpm Rear oxygen sensor voltage when fuel cut starts ≥ 0.55 V Fuel cut time ≥ 5000 ms Engine coolant temperature when fuel cut starts ≥ –40 °C (–40 °F) Estimated temperature of rear oxygen sensor element when fuel cut starts ≥ 450 °C (842 °F) EN-01696 (3) V (1) (2) (2) (E) (F) (C) (B) (D) (A) |