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-   -   LT1 iac wiring (http://www.northeastf-bodyassn.com/showthread.php?t=3794)

KB93z28 02-20-2012 07:39 PM

LT1 iac wiring
 
So a little while ago, I replaced the connector for my IAC in my car because the tab broke off. Im pretty damn sure I have the wires right, but i just want to be sure. I cant find a wiring diagram anywhere, I did find somewhere that there should be a blue wire with a white stripe, another blue with black stripe, and then there should be two green wires, same thing, one with a white stripe, and the other with a black stripe. Well on my car, all four wires are a light green, two have white stripes, and the other two have black stripes. So any help?

fasta**z28 02-21-2012 12:59 AM

Looking from plugged into throttle bodle
Right to left blue white/ blu blck/ green w /
Green blck I believe if that helps !!!! Si yea u got it correct

KB93z28 02-21-2012 01:07 AM

I have a different setup because mine is a 1993, your IAC uses a four wire flat connector, mine uses a box like connector that has two wires wide on the bottom and then two wires wide on the top of the connector Like this one


http://j.b5z.net/i/u/2098530/i/WIR480_ezr2.JPG

And all four wires going to my IAC are green, there are no blue wires.

fasta**z28 02-21-2012 01:31 AM

shucks well tottaly forgot 93 had the box looking one i believe its the same colors just the way i labled them but from right to left blue white/ blue black on top both grens on bottom ? maybe this will help http://shbox.com/1/1995_pcm4.jpg tried!!!!:)

KB93z28 02-21-2012 01:42 AM

Thanks, but I dont think you get what im trying to say, that diagram is for a 1995, and the four wires on my car going to the IAC connector are all light green two have white stripes, the other two have black stripes. I dont have any blue wires going to my IAC and Im damn sure theres no blue wires, I even used cleaner on the wires to make sure they werent just dirty or something.
Thanks for your help though, I appreciate it!

84ta406 02-21-2012 01:52 AM

http://repairguide.autozone.com/znet...52800b881d.gif

Help at all?

Formula413 02-21-2012 02:30 AM

That also appears to be something another than a 93. You 93 guys and your non conforming wiring!!!

I think Ima save that diagram though

ILuvPizzaTimes10 02-21-2012 03:39 AM

http://www.lt1swap.com/pictures/93lt1_3.jpg

Thats 1993 for sure!! look at the back of the connector. it will be labelled a-d correspond those letters to the right color wire. the wires in the harness not From the connector.

KB93z28 02-21-2012 07:28 PM

I appreciate all the help, but maybe im not being clear. The 4 wires coming to my IAC from the actual original harness itself are all green, there are no blue wires in my harness that are for the IAC. If they are blue, they must be discolored and I cant tell the blue or green apart, I even had my brother look, just to make sure im not color blind. He said all four wires coming from my harness are green for sure. Two of them have white stripes, the other two have black stripes.

KB93z28 02-21-2012 07:55 PM

1 Attachment(s)
Well I ended up following the wires back further in the wiring harness, turns out that the blue ones were just REALLY discolored, I do have the Iac wired up properly, but I stumbled upon something else when I went further back in the harness. What is this? its not factory im assuming. The two pink wires go to the two front injectors on the passenger side, but why is there a third wire on the other side that runs into the main harness? and the two green wires go to my alternator I believe. The car does have an aftermarket alarm system that will arm itself when I shut the car off, so maybe thats what the third wire is for, it probably runs into the alarm box and it senses that the injectors arent cycling anymore so it arms the system?


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