Engine light came on the code said it was something to do with the gas cap
3 Answers
99% of the time this means that your evaporative emissions system has detected a small leak. Make sure your gas cap is tight and also try cleaning the o-ring on the gas cap before reinstalling.
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On my2007 Lexus es350 I was told today that it was a communicate problem but the young man reset it it off for now
2007 es 350 code 2171
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