mightyquickz28

iTrader: (8)

I'm chasing gremlins and they are basically kicking my ****. Where can I buy an engine compartment wiring harness? I know they are anywhere from $xx to $6xx bux.

Speed Density

iTrader: (38)

cz28.com is your best bet. I just found a 94 harness for $65

mightyquickz28

iTrader: (8)

Thanks. Did you install yours yet? I haven't taken mine out yet. Does it just plug into the firewall?

Eric Bazan

iTrader: (1)

Here's one on ebay http://cgi.ebay.com/ebaymotors/95-LT...spagenameZWDVW

Eric Bazan

iTrader: (1)

Here's another http://cgi.ebay.com/ebaymotors/1996-...spagenameZWDVW

Speed Density

iTrader: (38)

There are a few small connectors that run up under the glove compartment, other then that its like a 30min job. Pretty easy.

Tony.

mightyquickz28

iTrader: (8)

Thanks ! I'm at work right now and the Proxy server won't let people here see Ebay. Prolly a good Idea. hehehe... I'll check it out when I leave from work.

mightyquickz28

iTrader: (8)

Thanks for the input! I sure hope this will fix my poor opti signal. Everything works except the opti. I've replaced the opti and the pigtail. Same issue. The LTCC diagnostics say I've got a bad signal. It sparks randomly on every spark plug. It'll fire in time with the cylinder phasing but it might skip a cycle or two before resuming.

mightyquickz28

iTrader: (8)

Here's the reason I want a wiring harness. The thing sparks irregular. It will spark anywhere from once to 8 times successively, then sit out a turn or two, then resume for another random amount of times. I'd decided it was a wiring issue. I have a couple of possibilities in the wings for a replacement harness after inquiring today. But, I figured, "Well, if I'm going to (potentially) replace my old harness, why dont' I go pull it(the Opti and ICM wires) out of the split loom and see if anything looks amiss?". So I just walked back from the garage having done that. Here's what I found. The ICM wire is completely pulled out of the loom. The wire now goes straight from the PCM to the LTCC box. I tried the opti test (spinning it by hand, watching the LTCC diagnostic LED's (still flashing 3 times, indicating poor signal) and the plugs (still firing indiscriminantly). So I started pulling the Opti connectors wires out of the loom. First wire, okay(5volts). Second wire, okay(5volts). Third wire, okay(12volts). Fourth wire... interesting. This is a pink wire but about halfway to the PCM, it "Y"s into two pinks. One leads to the PCM, the other one darts down into a smaller loom and... is cut/broken/disconnected ?????! Now according to the book and web references, this connection at the opti is like a ground? But in the pictures, it's shown with an asterisk beside it. Of course, the picture, having been snipped from a book or manual, doesn't have the legend saying what the asterisk implies. I'm going searching now to see if I can find something definite about it.

bobdec

I don't have a '96 wire diagram, but in my 94 pink is ground ref from the pcm to the opti. In '96 w/vented opti the low res signal (red/blk wire) functionality was replaced by the crankshaft sensor. My guess is maybe splice has something to do with crank position sensor. Only a guess.. can someone with '96 wire diagram chime in here..