I noticed a couple wiring connectors in the engine bay area that seems to be disconnected and I cannot figure out where they go. Can anyone tell me what they are for?



The 2nd pic seems to have a rubber boot on the end of a red wire.




The 4th pic has a metal bracket that attaches to something?

 

#1 looks like either your air temp sensor that goes under the plenum. Or it could be for the EGR solenoid in pic #4.

Pic #2 looks like the remains of a car stereo system.

Pic #3 looks like the fuel pump prime switch. Use a wire to hook that switch to 12V power and your fuel pump runs. I use it to drain my gas tank of 91 octane and pour in 100 octane at the drag strip.

Pic #4 is your EGR solenoid. The bracket is supposed to connect to the bracket on your stock coil, but I see you have an aftermarket one.

 

#2 looks like the underhood light and the rest kevin is right about

 

Underhood light? My underhood light is missing and I've yet to put one in. The wire from memory doesn't seem to look like the one in pic 2 that goes to the light.
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Pic 2 from an aftermarket stereo system you mean? The car has a stock stereo in it. I don't see anything of the sort that would indicate it had one unless I'm wrong.

 

I am pretty sure that #2 is for the hood light. I have an 87 and have changed the fuse in that very same wire for my hood light

 

Really?? Can you or anyone else provide pics to give me a better idea of whats involved in this? I wantto get my wiring for the lights hooked back up since I currently do not have an underhood light since the car has been repainted as part of the restoration process.

 

Does anyone have pictures of their underhood light set up with the wiring etc...?

 

Anyone?? Pics would be greatly appreciated!

 

The 1st pic I posted.. someone mentioned it looks like it should connect to the underside of the plenum... Well I checked and it already has one hooked to it. I wo nder if this is for the washer fluid pump since mine does not work when engaged.

 

It looks too far away to be for the washer fluid pump. That should be easy to check as its a large plastic container on the driver's side of the car. There is a black pump in it and a wire plugged in.

I still say it looks like either the IAT sensor under the plenum (the sensor has a pigtail that plugs into the sensor AND to another plug in the wire harness), or it could be for the EGR solenoid.

 

I read somewhere that the earlier IROC's had the washer pump located near the wiper motor whereas the 88 and up have the pump inside the washer fluid reservoir. My 87 Vette had the pump inside the washer fluid resevoir. However I don't see that on this car. Correct me if I'm wrong.

 

bump

 

I will be under my hood tommorro and can take pictures of my hood light if you still need.

 

Yes please do and if you can include the wiring and where it goes I would appreciate it.

 

Still waiting on those pics...

 

On my 87 the washer fluid pump plugs into the wiper motor kinda on the lower left side.Should be easy to tell if its connected or not.Is your washer spray working?The pump plugs into the wiper motor and the plug into the pump.Its basicly the same plug and the same pump on most gm cars of the day even 4th gen camaros.Just cant tell from the pic if thats the connector.

Looked at the pic again and your pump is there and hooked up to the hoses but doesnt appear to be pluged to the connector.Just plug it in.

 

Thats what I was thinking about that connector. I can't even see under the pump where it plugs into and I'm trying to do it by feel. I guess I will just have to try again until I can get it to snap in place. Thanks for the reply.

 

Pull the pump out of the wiper motor and do it.It should come right out.

 

sorry about the delay on the pics, had to leave the area on a personal matter. Will be in the garage tommorro and will get the pics

 

Thankyou. Hope all is well.

 

#1 is not your IAT sensor pigtail, I changed mine today and it looks nothing like that. It has an indentation replacating a mushroom. Also the connector itself is shaped differently.



I do have a "mystery plug" that is identical to that, it's rendered useless for a camaro but on a firebird is seems to be related to the VSS.

 

Ok, in pic #1 you see the red wire on top. It wraps around the black circular thing and goes into a relay shown in picture #3. The bottom wire containing the fuse, also shown being held in photo #2, runs to the light attached to the underside of the hood. It has a ground wire you can see comming out of the casing in picture #2 and is attached to the inside fender about 5 inches away. Picture #3 shows the relay to which the red wire is routed. Forgive my lack of technical knowledge, I am learning as I go.

 

I appreciate the pics. I will have to take a look again under my hood. Can you provide pictures of the under hood light and where the wires run to? Thanks.

 

pic #1 is a black/red wire which leads directly to the back of the light. You can also see a ground wire that is kinda wrapped around the black casing, that goes to the hood light bracket which is attaced to the hood.
Pic #2 shows the light on the hood from the drivers side. The black casing you see running by the hood shock is the casing containing the black/red wire and the black ground wire. The ground wire is secured to the light bracket and hood in the corner of the bracket nearest to this view, its a little hard to see.
Pic #3 shows the black/red wire running into the back of the light. It plugs into some type of connector before doing so. You can also get a better view of the ground wire which is the top one of the two.
Let me know if this helps. I will be back out in the garage tommorro. I am trying to find a battery drain.

 

I appreciate the pics. I will go out tmw and take a look at my wiring again.

 

I just bought the complete light/harness off of Ebay because a previous owner had removed it. All wires attach to a plug with a female end. I can send you pics of it (it's uninstalled) if it would be helpful.

 

MY WASHER MOTER IS LIKE THE ONE IN PIC 1 THE PUMP IT SELF HAS PLUGS ON TOP OF THE MOTER NO PLUG IN IT GETS POWER FROM WIPER MOTER PLUG IN

 

Are you still having problems getting youre washer motor to pump water?Its really a pretty easy system to understand.From pic #1 it apears that you washer pump is in place.Does it spray washer fluid or not?There will be a delay of several wipes of the wipers before it actually starts to some out.If you dont get fluid out of the wipers after 5 or 6 wipes you have a kink,disconnected or clogged hose somwhere.

 

Yes please post pics. Thanks

 

No washer fluid comes out even if I engage it and wait several seconds. I still have yet to look at it again. I will need to check the tubes to see though.

 

helle there TG this place still exist
I know this was posted back in 09,but i have a same question today in 2015 and I was wondering if you ever figure out what was the connector for?
.. the one the very first photo(connector just under the washer/wiper motor) posted by 87Injected.
I have a same connector on my 87 IROC-Z28 305-5Speed and am not sure if that should be connected somwhere. I also have a similiar connector on the other side?(passenger)close to the distributor that is also not connected anywhere and I could not figure it out where it should go or if that infact was for different model maybe and not use for 87 IROCZ28

 

Hello anybody outthere ?

somebody