LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

94 z28 pcm communication port wiring

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Old 01-22-2005, 08:07 PM
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94 z28 pcm communication port wiring

If you have a 94 maybe you can look at yours or help me with the wires to the communication port of a 94. A schematic or something would help me maybe also?
On my communication port I have 4 wires,one of the wires black/w white stripe wire(isolated by itself to one side of plug/port) is not hooked up to anything just about 10" of wire. I did not cut it its been that way since I got the car.
Can you help me determine where if anywhere this wire is supposed to go to? I am about to start messing w/ tunercat and datamaster so I need to make sure this port in in order correct?

T.
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Old 01-22-2005, 09:07 PM
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Re: 94 z28 pcm communication port wiring

http://shbox.com/1/dlc1.jpg
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Old 01-22-2005, 10:04 PM
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Re: 94 z28 pcm communication port wiring

What cavity does the wire come from on the DLC?
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Old 01-23-2005, 11:47 AM
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Re: 94 z28 pcm communication port wiring

Looks like cavity G Shoebox and thanks for the tech aide madwolf.

So you know... I did check Shoebox tech first. It helps for one to know the correct name first . Somehow scanned right over that DLC. But I'm still not convinced my wire went to the keyless entry. Can you verify? The lone black/white wire on the right.
http://community.webshots.com/photo/...57612487soAFgB

Will the wire being disconnected cause problems with CORRECT connection to the pcm for data logging and programming?

some info: I have never used keyless entry or had a fob with the keys on this car.

TIA

T.

Last edited by #7; 01-23-2005 at 11:51 AM.
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Old 01-23-2005, 07:10 PM
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Re: 94 z28 pcm communication port wiring

Was buried
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Old 01-23-2005, 09:22 PM
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Re: 94 z28 pcm communication port wiring

I can't see how that wire can affect anything but keyless programming.
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Old 01-23-2005, 09:53 PM
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Re: 94 z28 pcm communication port wiring

Here is a link that has the 1994 cammaro LT1 wiring diagram. It is in adobe and is in a zip file but it is free

http://home.att.net/~subzero350/
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Old 04-11-2005, 09:49 PM
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Re: 94 z28 pcm communication port wiring

cool
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