Jeff1104 Posted May 10, 2022 Share Posted May 10, 2022 Replaced knock sensors, no check engine light for couple weeks now engine light on getting P0440,P0441,P0446 codes..checked gas cap,purge valve? Where is it?..any suggestions where to go with this would be appreciated Quote Link to comment Share on other sites More sharing options...
Jeff1104 Posted May 10, 2022 Author Share Posted May 10, 2022 Found it top left side on intake Quote Link to comment Share on other sites More sharing options...
RX400h Posted May 10, 2022 Share Posted May 10, 2022 And with an LS430: Check engine Light on with three codes P0440, P0441, P0446 on my neighbors 2002 Lexus Ls430. I did a little research and (justanswer.com) Quote Link to comment Share on other sites More sharing options...
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