1997 Acura CL check engine light on running lean smoking fr

1997 ACURA CL
117,000 MILES • 4 CYL • FWD • AUTOMATIC
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TOASTCL
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my check engine light has been on for a month now i ran a diagnostic on it and got a code that told me engine was running to lean. i replaced fuel filter, pcv valve and all oxygen censors have previously been replaced under warrenty. im getting a blue grey smoke coming out from behind engine. last oil change i did i realized that there is a oil leak seems to be coming from a tube behind the engine, not for sure though. any advise on this would be great i am really stumped at this point.
Apr 25, 2008 at 12:30 PM
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LEGITIMATE007
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do this first check your pcv valve to see if it is clogged if so replace it. then get back to me
Apr 25, 2008 at 2:32 PM
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TOASTCL
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yea i already replaced it....
Apr 27, 2008 at 4:41 PM
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LEGITIMATE007
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now lets check the egr valve to make sure its not stuck closed. and test to make sure its not faulty. then were gonna go to injectors. have them noid tested. to make sure they are all firing correctly
Apr 27, 2008 at 8:17 PM
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LEGITIMATE007
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fuel pressure regulator should be checked also
Apr 27, 2008 at 8:18 PM
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LEGITIMATE007
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https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm

you can go here to check fuel pressure and pressure regulator
Apr 27, 2008 at 8:19 PM