626 Problem - Smart Guy Needed!

[Qtband]

My 1998 idles like crap. Up, down, all over the place. I have:
Changed all Filters
Changed Map Sensor
Changed IAC Valve
Changed plugs and wires
I have sprayed Carb Cleaner near the red circle in the picture and it affects the idle. I'm thinking that my problem lies in that area. Maybe a leaky injector, manifold gasket or some kind of vaccuum leak.
In the second picture is a orange and yellow ????? something. It is located in the "red circle" in picture #1 near the problem area. What are they? Is there supposed to be vac hoses hooked up to each?? Only one has a hose at this time.
Any ideas?????
http://qtband.com/mazda.htm
Ken

 

[MakeMeGoFast]

Your Egr valve may need to replaced or cleaned.
Look at this thread see if the symtoms are what your experiencing

http://www.mazdas247.com/forum/showthread.php?t=94788&highlight=hot+egr

 

[protogizzle]

I am thinking that your intake manifold gasket is leaking on the bottom of the manifold. It breaks underneath sometimes and you sometimes cant see it. It may be worth doing it if you have alot of miles as it is pretty cheap at the dealer.