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What are these and what does this do?

Old 11-07-18, 05:08 PM
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What are these and what does this do?

So upon my other adventures in my engine bay, I found a few things that were disconnected or not attached and I was hoping someone could help me identify them!

1.




as you can see thereís a vacuum line not attached anywhere. I found one just below it that is capped off, should I connect them? Or does anyone know specifically what that one does?

2.

Behind the intake manifold that guy is just hanging out by himself, where does that go? Or where should it go?

3.


What is that empty plug for?

I hope all these load up like they show, itís difficult from your phone lol
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Old 11-07-18, 06:08 PM
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It would be easier to help if you could tell us more about the car, I.E. year, mods, etc.

From what I can see you have a JDM car since the wiper motor and ABS are on the "Left" side of the engine bay. I think the cruise control would still live on that side of the engine bay and would explain the plug.

The unused vacuum line could be for EGR that doesn't exist on the JDM model?

These are just guesses and I could be wrong.
Vince
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Old 11-07-18, 06:42 PM
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Sorry I never thought to include those details! Itís a RHD 92í fd, as far as mods go, aside from cosmetics itís (from what I can tell) stock in regards to the engine.
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Old 11-07-18, 06:57 PM
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I have a 1992 RHD also. The 3rd pic, I have that same plug that doesnt go anywhere. Mine is locked in place to a bracket on the abs (the blue plastic in your pic). Mine doesnt have cruise control either so if thats what its for that makes sense.

the hose in pic 2 goes to what is I believe is the air control valve. Mine is attached.

i couldnt find the hose area in pic 1, if your car is missing the air control valve it may explain it.


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Old 11-07-18, 07:25 PM
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Pic 2 is an air hose that should go to the air control valve (from the air pump I believe). I don't see the metal tube/nipple it connects to in your picture, but it could be hidden by the intake manifold.

All I see disconnected in Pic 1 is the hard vacuum line. I believe that is the line designated as empty in the FSM. If there is something else disconnected in that picture I must be overlooking it.

Can't help with Pic 3. Have not encountered that on my USDM car.
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Old 11-08-18, 02:15 AM
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For pic one, the other hard vacuum line in capped off with a rubber cap, sits behind the water pump, I didnít take a pic of that, but it sounds like I donít need it connected anywhere.

pic 2 can anyone post a pic of what theirs looks like? Air control valve sounds somewhat important, Iím not 100% familiar with it, so if not please correct me if itís ok to just be open like that.

Pic 3, my car doesnít have cruise control either so I think that mystery is solved

thanks for all the help!
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Old 11-08-18, 06:35 AM
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The air control valve is part of the emissions system, you can see some photos and discussion about it here: https://www.rx7club.com/new-member-r...-soot-1082502/
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Old 11-08-18, 09:40 AM
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I definitely do not have an air control valve on mine and itís not throwin soot around my engine bay, doesnít seem to effect it anyway, so I guess just leave it?
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Old 11-08-18, 09:44 AM
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Well the car in that thread has a filter on the opposite end of the hoses going to the acv. On my car and a factory car it should be routed into the intake tube.

It seems like a previous owner deleted it, im not 100% sure on how that could affect the car or emissions but I dont think its uncommon to be removed, along with the rest of the emissions equipment.
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Old 11-08-18, 10:11 AM
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Yea It is routed to the intake tube, I was wondering what they were lol the other seems to be connected somewhere i didnít pay a ton of attention to it yet. Seems to have been running healthy otherwise, no filter like that other car either. But if the engine is sucking in air through the main intake whatís the point of the two hoses coming off the sides of it? Sorry if thatís a dumb question
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Old 11-09-18, 10:07 AM
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1. This pipe is unused on your car and should be like this.
2. AVC is removed, guess whoever did the work couldn't be bothered to remove this part of the system. The pair of pipes bolted to the LIM can be removed and the ports blanked off.
3. This plug is for your ABS, looks like it's unplugged, should be a matching plug down there.
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Old 11-09-18, 11:03 AM
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Perfect, that answered all my questions, thanks a lot to everyone who has helped!
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Old 11-09-18, 07:38 PM
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Originally Posted by Ceylon View Post
1. This pipe is unused on your car and should be like this.
2. AVC is removed, guess whoever did the work couldn't be bothered to remove this part of the system. The pair of pipes bolted to the LIM can be removed and the ports blanked off.
3. This plug is for your ABS, looks like it's unplugged, should be a matching plug down there.
you were correct about the abs! There was a matching plug under there and I also found another buried below it in which it also had a matching plug. I connected both, but my question is whatís the other one? And could It have been disconnected for a reason or just someone being lazy?


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Old 11-09-18, 07:54 PM
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Oh and whatís this? Found it hiding away below the air box. Looks important
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Old 11-10-18, 09:16 AM
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That wire doesn't look like stock, I think some boost controllers used a plug like that. Can be leftover from an old boost controller or something.

There does seem to be a lot of non-stock wiring in front of the fan in that picture.

Dale
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Old 11-10-18, 09:30 AM
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Originally Posted by ecurbd02 View Post


Oh and what’s this? Found it hiding away below the air box. Looks important
That's the plug for the external air temp sensor for cars fitted with climate control. Should be a sensor for it to plug into in the bumper mouth. I'm guessing your FD is a type X.
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Old 11-10-18, 03:29 PM
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Iím 90% sure mine is a 92 R1 with 99 spec pieces in it. The more I dig, the more I find out about this car that I was never told. Thereís no sun roof, and I havenít really looked hard enough for a temp sensor around the bumper. Maybe there was one before they put the 99 spec bumper on? I invite anyone to come take a look at mine and tell me what is supposed to be where and whatís not supposed to be where lolol Iím learning as I go, still somewhat newer to the rotary world
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Old 11-11-18, 05:21 AM
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With that plug above I can guarantee it's not an R1, they never had the option of climate. Unless the whole front horseshoe loom has been swapped I guess! Post up or PM me the VIN and I'll tell you what model she is if you're interested .
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Old 11-11-18, 08:08 AM
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Yea sure! Iíd appreciate it actually

fd3s-110493
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Old 11-11-18, 11:07 AM
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Yeah, you're right, it's a vintage red, manual, 4 seater, type R made on the 8th of June '92. That front loom is from a type X though. Must have had some work done over the years.
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Old 11-11-18, 12:37 PM
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Sorry if this is a dumb question but what do you mean by ďloomĒ? The engine bay is purple and red, I canít tell if itís just been repainted or replaced
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Old 11-11-18, 01:02 PM
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Perhaps it has a different meaning in the states, over here wiring loom means the same as wiring harness .
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Old 11-11-18, 02:32 PM
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Originally Posted by Ceylon View Post
Perhaps it has a different meaning in the states, over here wiring loom means the same as wiring harness .
ohh ok, it may also be called loom from time to time here, but I personally know it as the harness lol but it may have, a lot of the wiring in the front seems different/ out of place
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