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4LO And Check Engine Warning Light On
The vehicle does not have any noticeable symptoms, the owner is just not comfortable with the lights ON. Whenever the code is erased the 4LO light goes off. What is the relationship between the 4LO and the Air/Fuel ratio imbalance???. What is the best way to f... Login to read more. 
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18 Replies Received
18 Replies Received
| Engine | 5.7 L |
| Trans | 6-speed Automatic (Electronic) |
Vehicle Data
2013 Lexus LX570 5.7L
| Engine | 5.7 L |
| Trans | 6-speed Automatic (Electronic) |
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