2001 IS300 p0440 code terrible gas mileage - Lexus IS Forum
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post #1 of 3 (permalink) Old 12-05-2018, 09:01 PM Thread Starter
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2001 IS300 p0440 code terrible gas mileage

I just bought this car a month ago and the CEL came on after about 500 miles with a p0440 I believe for EVAP, my gas mileage is the worst ever and I swear I smelled fresh gas on the driver side outside the car. Any ideas? Nothing is leaking anywhere that I can see. Gas cap is after market but it's on there tight. 130,×××miles. 171 miles on a tank of 93 premium, filled to one line below FULL on the guage
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post #2 of 3 (permalink) Old 12-06-2018, 03:36 AM
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Can be your PCV valve on the top of the gaz tank, Also just beside there is the Overfill Check valve, It may be cracked on top

2002 IS300 - Manual 5-speed LSD M85
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post #3 of 3 (permalink) Old 12-06-2018, 06:40 AM Thread Starter
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Is there a positive crankcase ventilation valve on the gas tank also? I replaced the pcv under the hood a few days ago. Or is it called something else?
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