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Q: I keep getting the following codes P0171, P1150,P1150p on 2000 Lexus RX300

Plus the car is riding rough when cold. I did change the gas cap but now it is on so tight that I have to use plyers to remove
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Sounds like air fuel mixture issue, lean code could be different things on this model. There has been problems with the o2 sensor, purge solenoid, other vacuum leaks, and a MAF sensor. Have it tested to be sure.
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