Lean left bank code?
#1
Lean left bank code?
My wife has a 99 4 runner with about 95k miles on it. Recently it started running very rough upon start up and seemed really down on power. After about a week or so it finally set the SES light as lean left bank I believe was the name of the code. A mechanic friend of mine told me the O2 sensor was reading slow so we replaced it and the MPG went from mid 16's to 19. I also took the MAF sensor off and cleaned it with electrical parts cleaner and a Qtip. Today on the way home from work my wife called and said it set the light again......what could be the problem with this 4 runner?
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crammit442
95.5-2004 Tacomas & 96-2002 4Runners
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11-29-2017 12:30 PM