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