I recently installed a CAI on my 97 accord and my check engine light came on about 1 week after the install. I am coming up with a few codes but the one I am concerned about is the one that says the EGR valve is getting insufficeint flow. I noticed that the vaccum line from the intake resonator eventually connects with the EGR system. I was wondering what to do with this since i have a CAI that does not connect with the resonator and how do I stop my check engine light from coming on?

 

unplug the resonator and remove that junk box completely and cap off the metal line above the intake manifold that had the tube going to the resonator.

 

Lol, you have a few codes? I'd work on cleaning up all those.

I believe the EGR Insufficient Flow can be related to the EGR ports - you can clean them yourself per the Accord FAQ

 

*edit*

As a side note, when you install a new intake there should be one vacuum line that gets removed from the valve cover, and on the EX there's a smaller box/thing at the front near the battery. Neither should be related to EGR though.

 

what are the pros and cons to capping the vacuum line on the valve cover instead of reconnecting it to the new intake? does it even matter?

 

I looked a vaccun hose diagram and the hose goes into the intake manifold and out to the EGR selenoid on the other side of the engine bay. a friend had told me that this is where you get the vaccum needed for the EGR valve to work. The other codes that I am getting are that the system is running lean and bank 2 is running lean. I'm hoping that is because the EGR valve is not functioning properly becasue I need to remove those lines and cap off the ports on the intake manifold. I will be doing that later today and i'll let you guys know if that fixed the problem and cleared the codes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FunnyVictor86 &raquo;</TD></TR><TR><TD CLASS="quote">what are the pros and cons to capping the vacuum line on the valve cover instead of reconnecting it to the new intake? does it even matter?</TD></TR></TABLE>

That particular line you're talking about isn't a 'vacuum' line, but it acts as a fresh air supply into the VC to help flush out the contaminated blow-by gasses that get sucked out through the PCV valve. I wouldn't advise blocking that off.

 

I have found a set of instructions for an AEM CAI and is says that the line I am reffering to is part of the intake air resonator and since I did not have anything attached to it anymore than there was a vaccum leak and it actually provides the vaccum needed for the EGR system to operate properly. I have followed these steps and so far no more check engine light.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AFAccord &raquo;</TD></TR><TR><TD CLASS="quote">

That particular line you're talking about isn't a 'vacuum' line, but it acts as a fresh air supply into the VC to help flush out the contaminated blow-by gasses that get sucked out through the PCV valve. I wouldn't advise blocking that off. </TD></TR></TABLE>

thanks, thats good to know ... yea i kinda figured they wouldnt put a nipple on intake pipes if it wasnt necessary ...