EA81 Engine Compartment Identification Help

[subie_newbie]

I've had my car for a few weeks now (84 hatch) and worked on it pretty steady - setting it up as an off-roader only. But there's some stuff in the engine bay I just don't have a clue what it is. Can ya help a guy out?...

 

1. This is behind the strut tower on the drivers side fender...

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060331.jpg" border="0" alt="Photobucket - Video and Image Hosting"><br>

 

... and this is where it goes to, back of the carb above/on the EGR...

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060333.jpg" border="0" alt="Photobucket - Video and Image Hosting"><br>

<br><br>

 

2. Fuel line: is the return just a T off the main pressure feed, such that when the needle closes the excess pressur/fuel returns to the tank? Wouldn't that continually decrease the fuel pressure to the carb and possibly cause starvation?

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060334.jpg" border="0" alt="Photobucket - Video and Image Hosting"><br><br>

 

3. Fuel return line: why the hell does it go inboard, through the firewall, then back outboard? Is this just so if the line goes bad the drive gets gas all over his feet? How about in a wreck, when there's also potential for spark - great, a fire setup!

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060336-1.jpg" border="0" alt="Photobucket - Video and Image Hosting"><br><br>

 

4. Hitatchi carb part identification. What are these two electric gizmos? The big one on the right looks like a throttle position sensor, but way to high?

 

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060335.jpg" border="0" alt="Photobucket - Video and Image Hosting"><br><br>

 

5. Hill holder system?

 

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060337.jpg" border="0" alt="Photobucket - Video and Image Hosting"><br><br>

 

6. Ok, now I'm just showing off my latest goodie for the subie...

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060338.jpg" border="0" alt="Photobucket - Video and Image Hosting">

[subie_newbie]

Alright, what the hell. Looks like I'm not good enough to link pictures. I'll attach them...

 

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[GeneralDisorder]

1. Anti-Afterburn Valve (AAV)..... chuck it. You can search under my name and the name of the part. I've described it's operation in detail before. But trust me - you don't need it.

 

... AAV EGR port - direct port to the manifold..... see #1. If you chuck #1, replace the EGR with one from an SPFI manifold.

 

2. Return line to the tank. Allows the pump to not run "dead head" against a closed float needle.

 

3. It's either the fuel return or the tank vent line. I believe it's the vent though. If it T's into the same line that comes off the top of the vapor seperator, then it's the vent. I always get them mixed up.

 

4. Top - float bowl vent solenoid: someone capped off it's vent port though - that's a no-no. Bottom - idle circuit cut solenoid.

 

5. Hill Holder valve (HH).

 

GD

[86BRATMAN]

1. This is behind the strut tower on the drivers side fender...

<img src="http://i46.photobucket.com/albums/f115/torgysbuick/P1060331.jpg" border="0" alt="Photobucket - Video and Image Hosting"><br>

 

 

I'm not going to tell you anything about your questions at, GD covered that already.

 

The reason the pics didn't show up in the first post is the format in which the link is writen.

 

To do the link the easiest way in photobucket;

1. Find picture you want to post link for

 

2. Look at the three lines below said picture, the bottom one will be for the img attachment, simply click on that line somewhere. It automatically saves this line to clipboard

 

3. Come back here and do a "right click" "paste" where you want the picture to be

[subie_newbie]

1. Anti-Afterburn Valve (AAV)..... chuck it. You can search under my name and the name of the part. I've described it's operation in detail before. But trust me - you don't need it.

 

... AAV EGR port - direct port to the manifold..... see #1. If you chuck #1, replace the EGR with one from an SPFI manifold.

 

2. Return line to the tank. Allows the pump to not run "dead head" against a closed float needle.

 

3. It's either the fuel return or the tank vent line. I believe it's the vent though. If it T's into the same line that comes off the top of the vapor seperator, then it's the vent. I always get them mixed up.

 

4. Top - float bowl vent solenoid: someone capped off it's vent port though - that's a no-no. Bottom - idle circuit cut solenoid.

 

5. Hill Holder valve (HH).

 

GD

 

For #1, AAV: know a junkyard in PDX with a SPFI engine? Better yet, know one where I can yank the entire SPFI system! I've had no luck with the phone book, but most sounded like they didn't want to go look for me.

 

EDIT: GD, I searched as far back as 2002 but found no description of how it works, only that it is supposed to stop the exhaust 'popping' associated with decel. Any suggestions? Any reason to get the new EGR instead of just blocking off that port?

 

For the fuel return line (#3), any idea why it runs inboard of the brake booster then back outboard und the dash? Any reason not to re-route it? My reason: don't want a broken fuel line above my feet.

 

As for the fload bowl vent solenoid vent port - should it just vent to atmosphere? Should it be tied into the tank vent?

 

 

And...thanks 86bratman! As it says, I'm a newbie.

[Hondasucks]

The bowl vent on my old Subie vented to the carbon canistor, IIRC.

 

The reason you don't want to cut out the EGR completely is that it helps control the combustion temperature, and it's been known to burn valves, among other things, when it's disconnected, especially on newer (80s-up) engines that are designed with EGR in mind.