air pipe removal
Thread Starter
Intermediate
Joined: Jan 2009
Posts: 25
Likes: 0
air pipe removal
i need to change the valve cover gaskets on my 86 and there is a air pipe that crosses over the passenger side valve cover, it has to be removed, my question is once i remove this, does it have to be put back on or can i delete it without throwing any codes? and what about all the other air lines running along the passenger side exhaust manifold, do we need them? thanks
Thread Starter
Intermediate
Joined: Jan 2009
Posts: 25
Likes: 0
anyone?
i need to change the valve cover gaskets on my 86 and there is a air pipe that crosses over the passenger side valve cover, it has to be removed, my question is once i remove this, does it have to be put back on or can i delete it without throwing any codes? and what about all the other air lines running along the passenger side exhaust manifold, do we need them? thanks
Safety Car
Joined: Dec 2006
Posts: 4,290
Likes: 6
From: St Marys GA
You'll have to plug the holes, but yes you can remove all the piping without throwing any codes. You'll still have the parasitic loss from the belt-driven AIR pump, so the only benefit is a cleaner-looking engine bay. There are AIR delete pulleys out there for you to remove the pump and still have the same belt routing scheme.
Race Director
Joined: Nov 2003
Posts: 12,221
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From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
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At first glance, thought you were referring to the AIR tube that feeds both manifolds. Now I realize you mean the EGR tube.
They make EGR tube block-off plates for the intake manifold. You can probably use one of those on the exhaust manifold too. Both will need to be closed up.
You need to do a couple of other things to keep from throwing codes.
Click on the Search feature (red bar up top). Do a search on EGR (or EGR removal) for tons of threads on the topic. I'm CERTAIN there was one/two just in the past couple of weeks.
The other system is called the AIR system (A.I.R.). Plenty of threads on this topic too. Exhaust manifolds have check valves, so those don't need to be blocked off. Parasitic loss from the AIR pump itself is minimal -- especially if you gut it. Or you can do the eliminator pulley.
gp
They make EGR tube block-off plates for the intake manifold. You can probably use one of those on the exhaust manifold too. Both will need to be closed up.
You need to do a couple of other things to keep from throwing codes.
Click on the Search feature (red bar up top). Do a search on EGR (or EGR removal) for tons of threads on the topic. I'm CERTAIN there was one/two just in the past couple of weeks.
The other system is called the AIR system (A.I.R.). Plenty of threads on this topic too. Exhaust manifolds have check valves, so those don't need to be blocked off. Parasitic loss from the AIR pump itself is minimal -- especially if you gut it. Or you can do the eliminator pulley.
gp
Last edited by GREGGPENN; Feb 6, 2009 at 05:48 PM.
