First of all, whats this box near my heater fan?



secondly, whats this wire being spliced? it comes from the firewall all by itself under the steering colum.



whats this white vacum thingy with the 2 hoses going off of it?



Spliced wire fans???



and this is my mess, how can i go about cleaning up the mess of wires back behind the motor? should i buy a new wire harness?

 

the first pic is a relay. it may be for the blower motor.

im not sure what the wire is in the second pic, maybe something added on or a poor wiring repair.

third pic is the vacuum check valve for the A/C & heater vents & i believe it also goes to the
cruise control..

the fourth pic, its not uncommon for connectors to break & need replacing, thats what it looks like happened or maybe the wire got damaged & needed to be repaired.

there's not much you can do with cleaning up the wiring, maybe reroute what you can & get some new wire armor.

 

im going to get rid of everything that i dont need under the hood. scrap the smog pump and all the hoses and crap that goes with them, i'm going to do the open air element tomorrow. replace my wires and plugs, i replaced my intake temp sensor cause it was killin my car and now works fine but the sensor wont go all the way it, might have cross threaded it but it doesnt leas and works fine so im not too worried about it right now. i can see part of a wire going into my coil. prob not a good thing. I'm going to try and find some replacement wires and stuff without replacing all of it. I really dont car for air conditioning as its a convertible, so i might loose all of that. Ive had the car for almost 3 years and this is the first time ive even took anything apart under the hood. i never drive the car, i've been tring to restore it, but its takin forever cause all of my money goes into my SS's

thanks for the help.

 

This is where the splice begins. they taped this black wire into the purple one from the harness, they ran it back around the top of the motor and spliced back into the purple wire.




might not be able to see where i wrote on them.

Does anyone know what this purple wire is??

 

Also, right up where my blower motor is, there are these 2 wires, i unplugged the one from my underhood light, which was the orange wire i believe, the other one was not plugged into anything. anyone know what it is used for?

 

i am guessing someone hot wired the cooling fan the box by the heater is either the fan relay or the fuel pump relay i got to check one of my cars to be sure and will try to figure out the other wires but black wire with red tracer is cooling fan positive and i think the purple will be live with key i have a gm factory service manual and could scan pages to assit if you want
luke

 

the purple wire is the wire you start the car with if the key alarm thang went out and ud jump it tothe other wire if im not mistaken....which happen from tim eto time

 

well mine is a 1991 and the key does not have the vats chip or whatever its called. i know it should have it so that kind of makes sense. sobody rerouted it so it doesnt need the chip in the key. i'm just tryin to clean this thing up a bit and make sure its reliable if i decide to drive it down to GA this summer.

thanks guys

 

2 cars i have red is not hooked up never appears to have been and the relay is for the cooling fan

 

should i check to see if someone maybe installed a fan switch under my dash?

 

they probally used the purple to run the cooling fan constant when the keys on
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is the fan on with the key alot of the time then sensor located in the passenger head between 6 and 8 spark plug fails and to save time people hotwire the fan to fix the problem i have worked on these fans lots and people don' seem to want to fix the problem only want the fan to run

 

i'll look into that sensor. i know the car has had problems before i bought it, kept dying on the guy and he spend a ton of time with it in the shop. wouldnt start... i dont know what the key doesnt have the chip in it. also i found out that the red/black wire thats comming out of the firewall, its spliced into a fat yellow wire under the steering colum.


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So, you think they ran that extra wire from one side of the purple wire to the other in order to skip past the sensor tie in? sensor might have given out and they just bypassed it using the black wire.

How hard is it to use a new wiring harness? so i dont have to worry about anything being crossed or spliced, so it doesnt die on me when im not near home.

 

new harness is just alot of time to change vats was probally by passed with a resistor look for a orange cover wire form the column it will have to whit wires inside most people add a resistor here to skip vats it may be possible to repair the harness you have like i said i have the gm factory service manual and have built lots of camaros i would choose to repair before replace the damage i have seen so far is easy to undo
luke

 

From what ive found, it looks easy to fix but you can never tell what condition a wire is in whiteout stripping out the covering on it. the had has been in an accident before and may be the cause of the wiring issues. I figured it i start over clean it would make it a lot easier. I'd rather swap to an LT1 and rewire it with the LT1 stuff, but that may be down the road if i keep the car