Index Subaru Subaru Impreza 3 / Impreza WRX / Impreza WRX STI - service repair manual 2008-2014 year
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EN(H4DOTC)(diag)-252 Diagnostic Procedure with Diagnostic Trouble Code (DTC) ENGINE (DIAGNOSTICS) 3 CHECK WAVEFORM DATA ON THE SUBA- • At abnormal condition 1 (numerous inver- • At abnormal condition 2 (noise input) Is a normal waveform dis- • The waveform is • The waveform is 4 CHECK CATALYTIC CONVERTER. Is the catalytic converter dam- 5 CHECK REAR OXYGEN SENSOR CONNEC- Has water entered the connec- Completely Step Check Yes No EN-06668 1 0 10 sec/div REAR OXYGEN SENSOR VOLTAGE (V) EN-06669 1 0 10 sec/div REAR OXYGEN SENSOR VOLTAGE (V) EN-06670 1 0 10 sec/div REAR OXYGEN SENSOR VOLTAGE (V) |