failed emission
#1
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i have a 94 lexus gs300 i failed emission because of high nox levels. i have done tune up,changed everything to do with egr valve.took intake off car and completly cleaned and everything back together correctly. Car runs better than ever but fails emissions everytime. Any suggestions
#3
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your car is running lean, any check engine lights or anything that would suggest its cutting back the fuel? either that or you have not CATs haha but i doubt that
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