Toyota Corolla (E170): Scanning folders
1 Press and hold
until you hear a
beep.
The first 10 seconds of the first file in the each folder will be played.
2 When the desired folder is reached, press
again.
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Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located
before and after the catalyst
to determine whether or not the catalyst performance has deteriorated.
Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen
sensor in front of the catalyst
alterna ...
Engine hood/door
Preparation
Sst
Recomended tools
Equipment
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Cooling
Preparation
Recomended tools
Equipment
Coolant
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