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Home >> Lexus >> 1991 >> LS 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Code Charts >> Code 21 & 28: Left Or Right Bank Main O2 Sensor Signal

Code 21 & 28: Left Or Right Bank Main O2 Sensor Signal

Fig 1: Codes 21 & 28: Main O2 Sensor Signal Left or Right Bank (1 of 2)
G90G18933Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Codes 21 & 28: Main O2 Sensor Signal Left or Right Bank (2 of 2)
G90H18934Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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