I was wondering if any of you kind souls could help me identify a few things, as I am not sure what they are.
My terminoligy might not be entirely correct, so please be patient.
Part of the reason that I am doing this project, is to learn these things, so I will know better in the future.
First up, the exhaust system.
I have labelled parts, A,B,C,D.
I am incredibly sure that part C is an oxygen sensor.
But what about A,B,D? Are these three items cat converters?
Or something else? I wouldnt have thought an engine would have THREE cats. Resonators perhaps?
Next up! Intake manifold/throttle body.
The first pic is just a general view, so you can see what Im talking about.
The second pic is a close up of the left hand end.
There is a hose coming off this (A), and also a second attachment (B) where it would appear that another hose is to attach. What would these be for?
Would I be correct in assuming that this end of the manifold would have a slightly lower pressure than the other end.
Because you have four thirsty cylinders sucking in air from the 'throttle' end of the manifold.
Would these hoses perhaps be to equalise the pressure at both ends? Or would they be for an idle control/extra air for when the engine is cold?
Hmmm. Not sure about that one.
EDIT: Hmm, I dont think it would provide air to the manifold, as this would mean that it would have to plumb back into the intake. Otherwise it would be getting unfiltered air. So my money is on the fact that it leads to a vaccuum sensor at the moment.
The next picture is a view of the throttle body taken off the intake manifold. Looking from the *inside* of the throttle.
There is a small chamber here, (marked in red) which leads to... I dont know? Is it an idle control perhaps?
EDIT: now that I look at it some more, it looks like it provides air for the engine when idling.
It looks like it gets air from a cutout on the other side of the throttle plate.
Also, look in the bottom left of the picture. There are two connectors for hoses to attach to. If I blow in one, air comes out the other. If I block one hole and blow in the other, the nothing happens. Any idea what these would be for?
The next pic is looking inside the throttle from the *outside* eg. intake side.
Now, there are three things here worthy of mention. A,B,C.
Now one of these, (I am presuming B!) is the idle control (lets air past the throttle plate for when the car is idling) But what about the other two? A leads to a tiny little hose on the outside. C leads to.... I dont know. It doesnt seem to be connected to either of the two pipes that I blew through earlier. Perhaps it is a temperature sensor?
The next pic is a view from the outside.
With A,B, and C of course.
Now 'A' is where pipe 'A' from the picture above comes out. Its tiny, it looks like it has an inside diameter of about 1-2mm?
Now there is hose outlet 'B', which looks as if it is not a factory item. it is tapped in, and comes out on the *inside* of the throttle plate. For an aftermarket MAP sensor I would imagine.
hose outlet 'C' looks very factory, and runs to... Well see the pic below.
It runs into the area outlined, however the gasket covers over this area. It doesnt appear to run to anywhere? very strange.
Also, you can see where pipe 'B' from the picture above comes out. Very rough looking, definitely not a factory item. I Will just seal this off, if I will be running the factory AFM I would imagine.
Also, across the bottom edge there, you can see the recess that (I think) is the idle control mentioned earlier.
Well.... Thats all for now!
Thanks for any assistance you may be able to provide.
