LT1 Mystery Wire
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Joined: Jul 2010
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From: Victoria, BC
Car: 89 Firebird Formula
Engine: 3500T
Transmission: T56
Axle/Gears: 9 bolt/4.11
LT1 Mystery Wire
I'm in the process of setting up a wiring harness for an LT1 and I've come across a wire that I can't find info on. It's on a B-body wiring harness and it connects between PCM B18 and as far as I can tell C204 B3. The C204 has also been confusing because some wires seem to be in different spots that what I think they should be according to the diagrams I have. I've been using diagrams from lt1swap.com as a reference.
Any ideas?
Any ideas?
Re: LT1 Mystery Wire
Looking at the PCM pinouts on LT1 swap -
http://www.lt1swap.com/lt1_pcm_pinout.htm
Looks like B18 is a pnk/blk wire only on 94 b-body and isn't needed. Why it isn't and what it does, I don't know either. I'm guessing it's ok to not connect it to anything. You could email the owner of lt1swap.com and see if he has an explanation of the B18 wire.
http://www.lt1swap.com/lt1_pcm_pinout.htm
Looks like B18 is a pnk/blk wire only on 94 b-body and isn't needed. Why it isn't and what it does, I don't know either. I'm guessing it's ok to not connect it to anything. You could email the owner of lt1swap.com and see if he has an explanation of the B18 wire.
Thread Starter
Member
iTrader: (2)
Joined: Jul 2010
Posts: 399
Likes: 2
From: Victoria, BC
Car: 89 Firebird Formula
Engine: 3500T
Transmission: T56
Axle/Gears: 9 bolt/4.11
Re: LT1 Mystery Wire
Weird. I was assuming my motor was a 95 because it has a vented optispark...
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Joined: Jan 2001
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From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
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