2001 Honda Accord code po1491

2001 HONDA ACCORD
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LIVINGONAPRAYER
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Engine Performance problem
2001 Honda Accord 4 cyl Two Wheel Drive Manual 150k miles

I have a code po1491 on my 2001 honda accord stick trans 150k miles.It runs a little rough and the idle drops when i decel.it did die out a few times.i think this code refers to the egr valve.I looked at the exhaust manifold at the front of the eng compartment but dont see the egr valve to check it.Is there a tube coming from underneath to the bottom of the intake manifold.Am I even close in trying to figure out this problem
Sep 2, 2010 at 3:19 PM
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RASMATAZ
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https://images.2carpros.com/forum/automotive_pictures/12900_egr_19.jpg

DTC P1491 - "EGR Valve Lift Insufficient Detected" is most often caused by a broken vacuum line going to the EGR valve. So I would check all the vaccum lines to be sure they are tight and not broken. Funny thing about vacuum lines, they never break out in the open, always behind or under something. Best way to check them is to remove them one at a time so you don't get mixed up and check them over carefully.
Sep 2, 2010 at 3:38 PM
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