EGR Wiring Harness
Thread Starter
Safety Car
Joined: Aug 1999
Posts: 4,931
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From: Fort Lauderdale FL
EGR Wiring Harness
My EGR Wiring Harness broke a long time ago and no one seems to have this part for me to buy online or at the GM dealer. I want to stop the vaccum leak and improve gas mileage. Any help would be appreciated.
Elite Torch Red Member
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Re: EGR Wiring Harness (87vette)
Try Contemporary Corvette 1-800-367-8388, he has many used and new parts, can't hurt to give him a try.
Thread Starter
Safety Car
Joined: Aug 1999
Posts: 4,931
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From: Fort Lauderdale FL
Re: EGR Wiring Harness (Mr Mojo)
I called up contemporary corvettes and they said they have a brand new EGR wiring harness set which is a good thing. The bad thing is they are selling it for 450 dollars !!!! Surely they can come cheaper than that ??
Thread Starter
Safety Car
Joined: Aug 1999
Posts: 4,931
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From: Fort Lauderdale FL
Re: EGR Wiring Harness (Juliet)
All I need is the one wire that goes under the area of the throttlebody and it ends in the area of the drivers side headlight motor. I do not know the exact terminology for this one particular wire. It just cracked in half due to it being old and dried up. It h as a center piece which seems to hold two wires together on it whereas the other wire runs off in the other direction. Let me know if this is clear enough. Thanks.
Pro
Joined: Jan 2002
Posts: 657
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From: Some where, I'm still looking. Texas
Re: EGR Wiring Harness (87vette)
???????? I have a 1990. But I'll try to help. There should be a connector under the plenum that goes to the egr valve solenoid. This is how the ecm controls the egr. it allows vacum to be applied to the egr valve. Thus controlling it's operation. The area near the left headlamp is the canister purge. Is it wires or vacum lines that you are looking at. There should be some hard vacum lines going to that area. There is also some wire harness to the canister purge. This allows the ecm to control it also. This should be pretty simple, find the break in the harness and repair. Hope this helps. If you have a digital camera gets some pics.
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Thread Starter
Safety Car
Joined: Aug 1999
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From: Fort Lauderdale FL
Re: EGR Wiring Harness (Da-Cajun)
I'm having a hard time posting pictures on the site. Everytime I hit the image button it comes up in html format " [IMG][/IMG] " and when i drag and copy the image onto the window.. It fills up the whole screen. How do I go about posting without complications ?
Le Mans Master
Joined: Jan 2002
Posts: 5,320
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From: Kyle TX (Because Mojo Made me fill it in)
Re: EGR Wiring Harness (87vette)
Circled is the harness 87Vette was referring to. Im personally not too sure which harness it is as my 86 doesnt have anything like that there.
*87vette, Ill email you the sig pics resized in a sec. When you want to add it into your sig just add the following to your sig once you get your forum website created and the pics loaded. Replace the"1" with "i" in your actual sig.
[1MG]http://temp.corvetteforum.net/c4/87vette/sigpic.jpg[/1MG]
[Modified by VetteNoob, 8:20 PM 3/4/2002]
*87vette, Ill email you the sig pics resized in a sec. When you want to add it into your sig just add the following to your sig once you get your forum website created and the pics loaded. Replace the"1" with "i" in your actual sig.
[1MG]http://temp.corvetteforum.net/c4/87vette/sigpic.jpg[/1MG]
[Modified by VetteNoob, 8:20 PM 3/4/2002]
Pro
Joined: Jan 2002
Posts: 657
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From: Some where, I'm still looking. Texas
Re: EGR Wiring Harness (VetteNoob)
The picture is kinda blurry are it's just my eyes. That looks like the vacum supply going to the canister purge. Are you sure that is a wire harness? The only EGR harness that I am aware of is going to the EGR solenoid under the plenum. I also think on the older L98s there is also a EGR temp. sensor. These should run up to the firewall in conjunction with the rest of the engine management harness.
Thread Starter
Safety Car
Joined: Aug 1999
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From: Fort Lauderdale FL
Re: EGR Wiring Harness (Da-Cajun)
Yes it is a vaccum hose of some sort. But I went to the GM supplier and they looked it up on the computer and had different parts listed and pictures as well. The picture came up as a EGR wiring harness of some sort. Now im confused. I want to get this out of the way.
Pro
Joined: Jan 2002
Posts: 657
Likes: 1
From: Some where, I'm still looking. Texas
Re: EGR Wiring Harness (87vette)
Well you want to leave that vacuum source there. I went back to read your original post. You stated you have a broken EGR wire harness and you have a vacum leak. Due you hear a vacum leak? Or is it idling bad because of a vacuum leak. If the harness to the EGR is broken you would not have EGR which generally happens during part throttle. If you don't have EGR it should set a code. So lets figure it out. :eek:
[Modified by Da-Cajun, 4:00 AM 3/5/2002]
[Modified by Da-Cajun, 4:00 AM 3/5/2002]
Thread Starter
Safety Car
Joined: Aug 1999
Posts: 4,931
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From: Fort Lauderdale FL
Re: EGR Wiring Harness (Da-Cajun)
Well then obviously my terminology was wrong. Its the vaccum line that i need which broke. With the end of the line that is broken, when I put my finger over it to stop the leak the car doesnt surge. When I let go of it, it surges up and down and seems to run a lil rough. So if its the vaccum line I need then I want to find out where I can get another one since GM doesnt carry it i believe.
Le Mans Master
Joined: Jan 2002
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From: Kyle TX (Because Mojo Made me fill it in)
Re: EGR Wiring Harness (87vette)
87vette,
I just replaced that hose this weekend. It is a 1/4 hose and you will need about 3.5-4 feet of it to make a clean fit. Ill see if I can find a digicam tomorrow and post a few pics and let's see if we are talking about the same animal.
I just replaced that hose this weekend. It is a 1/4 hose and you will need about 3.5-4 feet of it to make a clean fit. Ill see if I can find a digicam tomorrow and post a few pics and let's see if we are talking about the same animal.
Burning Brakes
Joined: Nov 1999
Posts: 859
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From: Houston TX
Re: EGR Wiring Harness (87vette)
just get some vaccum line and fix it up.
You going for NCRS or something?
Or try calling all the junkyards you can find, and ask if they have any 87 to 91 corvettes. If so, go up there and snag what you need. I doubt a junkyard will charge much for plastic vaccum line.
In the mean time, seal the thing off so your engine runs correctly.
You going for NCRS or something?
Or try calling all the junkyards you can find, and ask if they have any 87 to 91 corvettes. If so, go up there and snag what you need. I doubt a junkyard will charge much for plastic vaccum line.
In the mean time, seal the thing off so your engine runs correctly.
Pro
Joined: Jan 2002
Posts: 657
Likes: 1
From: Some where, I'm still looking. Texas
Re: EGR Wiring Harness (87vette)
You can get those hard vacuum hoses at your local auto parts stores. Yes a vacuum leak will cause and erratic idle. Soooo you don't need an expense wire harness just a little inexpensive vacuum hose. Cool now we are getting someware! :yesnod: