[URGENT PROBLEM] LTCC Installation Problem
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
[URGENT PROBLEM] LTCC Installation Problem
I have a 1992 LT1 Vette, with 6spd.
Tonite, I was going to do the final switch over. you know, wires harness, that stuff... however, the opti pigtail harness (the connector on the right bank of the intake) on my 92 is 5 wired square, whereas the LTCC is a 4 wire, flat.
To make matters worse, I tore up 2 old plug wires removing them... #s 6&8, of course... so unless I get an answer, I am buying some crap wires to get me through the next few days...
What the hell do I do now?
I have emailed LTCC, and await a response, but have heard it can be slow...
any ideas????
HELP!!!!!
pissed does not describe how mad I am right now... :mad :mad :mad
[Modified by bogus, 6:22 PM 9/26/2003]
Tonite, I was going to do the final switch over. you know, wires harness, that stuff... however, the opti pigtail harness (the connector on the right bank of the intake) on my 92 is 5 wired square, whereas the LTCC is a 4 wire, flat.
To make matters worse, I tore up 2 old plug wires removing them... #s 6&8, of course... so unless I get an answer, I am buying some crap wires to get me through the next few days...
What the hell do I do now?
I have emailed LTCC, and await a response, but have heard it can be slow...
any ideas????
HELP!!!!!
pissed does not describe how mad I am right now... :mad :mad :mad
[Modified by bogus, 6:22 PM 9/26/2003]
Race Director
Joined: Mar 1999
Posts: 12,594
Likes: 237
From: Bartlett Illinois
Re: [URGENT PROBLEM] LTCC Installation Problem (bogus)
Not that I can help, but do you know what the 5 wires are for on your car and then the 4 wires in the LTCC?
Do you have the GM Service manual to check the 5 wire plug in question?
Do you have the GM Service manual to check the 5 wire plug in question?
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (-=Jeff=-)
I am getting ready to see if the LTCC explains each wire in the pigtail... if it does, I can tap...
then the helms will make it happen... but in my immedate rage, I have not seen the break out in the LTCC's less than helpfull instructions...
then the helms will make it happen... but in my immedate rage, I have not seen the break out in the LTCC's less than helpfull instructions...
Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: [URGENT PROBLEM] LTCC Installation Problem (bogus)
Quite a few guys on the Z28 forum have installed them, ask over there also... http://www.camaross.com/forums/forum...2207&forumid=9
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (superlund)
ah. good idea... was thinking that, but could not remember the link.
what I need now is the pin out for the opti.
I have determined that the extra (5th) wire is for the coil, so, I don't need to worry about that one. I need the other 4. whatever the hell they are.
has anyone ever noticed how icky the contents and order is of these Helms manuals? unbelieveable.
what I need now is the pin out for the opti.
I have determined that the extra (5th) wire is for the coil, so, I don't need to worry about that one. I need the other 4. whatever the hell they are.
has anyone ever noticed how icky the contents and order is of these Helms manuals? unbelieveable.
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: [URGENT PROBLEM] LTCC Installation Problem (bogus)
Bogus,
I'm pretty sure you don't need the 5th wire. When I installed the updated opti I ran into the same problem. I had to remove the pins from the new pigtail and put them back into the old connector. It still went ABCD, but it was strange. Let me go take a look.
:cheers:
I'm pretty sure you don't need the 5th wire. When I installed the updated opti I ran into the same problem. I had to remove the pins from the new pigtail and put them back into the old connector. It still went ABCD, but it was strange. Let me go take a look.
:cheers:
Safety Car
Joined: Feb 1999
Posts: 3,504
Likes: 4
From: Mexico Beach FL
Re: [URGENT PROBLEM] LTCC Installation Problem (bogus)
The early Opti-Spark has an extra wire that is a shield. The later one doesn't use a shield. In addition, the the connector under the right injector cover is different between the early and late Opti-Spark. But, the pin numbers are the same. So, you can eject pin 1 (or A) from the early connector and put it in pin 1 (or A) of the late connector, etc. All you need to do is change the connector on the harness or the LTCC, making sure you keep the same pins in the same place -- it's best to do them one at a time.
This is the same procedure you have to follow when putting a late Opti-Spark on a vehicle that originally came with an early Opti-Spark.
Sounds like the LTCC is setup for the late Opti-Spark only. But, that's not a big deal.
Tom Piper
This is the same procedure you have to follow when putting a late Opti-Spark on a vehicle that originally came with an early Opti-Spark.
Sounds like the LTCC is setup for the late Opti-Spark only. But, that's not a big deal.
Tom Piper
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (Tom Piper)
ok, this brings up question #2...
is the same 1 to 1 relationship on the LTCC connector?
I guess what I need to do is figure which is which... you see, I can't GET that connector until MONDAY!!!!!!!!!!!
I want to be able to tap directly into the harness... ie, cut off the pigtail and solder directly to the harness connection... what does wire a do, b and so on?
thanks, guys!!!! you all rock!!!
is the same 1 to 1 relationship on the LTCC connector?
I guess what I need to do is figure which is which... you see, I can't GET that connector until MONDAY!!!!!!!!!!!
I want to be able to tap directly into the harness... ie, cut off the pigtail and solder directly to the harness connection... what does wire a do, b and so on?
thanks, guys!!!! you all rock!!!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: [URGENT PROBLEM] LTCC Installation Problem (Tom Piper)
:iagree: I remember that even though the shape was different pin A was still pin A. You just take it out of the old connector and put it in the new one.
Here is a drawing of the pinout if after you put the new opti wires into the old connector. I don't know if the LTCC uses the same wire colors or not. The important thing is that Pin A on the new connector = pin A on the old connector which = pin A on the car side of the connector.
Hope this helps
:cheers:
Important note. This is drawn as if you were holding the connector and took it apart, then turned the open ends towards you. You are actually looking at the pins, not the back.
[Modified by Nathan Plemons, 6:31 PM 9/26/2003]
Here is a drawing of the pinout if after you put the new opti wires into the old connector. I don't know if the LTCC uses the same wire colors or not. The important thing is that Pin A on the new connector = pin A on the old connector which = pin A on the car side of the connector.
Hope this helps
:cheers: Important note. This is drawn as if you were holding the connector and took it apart, then turned the open ends towards you. You are actually looking at the pins, not the back.
[Modified by Nathan Plemons, 6:31 PM 9/26/2003]
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (Nathan Plemons)
NATE - YOU DA MAN!!!!!!!!!!!! :thumbs: :thumbs:
right. the pin faces.
now... can you tell me what each wire does???
I need to find that in the helms manual... annoying thing at times.
off for mexican food and beer... back in a cpl hours.
Thanks again to all of you!
[Modified by bogus, 7:40 PM 9/26/2003]
right. the pin faces.
now... can you tell me what each wire does???
I need to find that in the helms manual... annoying thing at times.
off for mexican food and beer... back in a cpl hours.
Thanks again to all of you!
[Modified by bogus, 7:40 PM 9/26/2003]
Le Mans Master
Joined: Oct 2000
Posts: 6,362
Likes: 30
From: Oak Harbor WA
Re: [URGENT PROBLEM] LTCC Installation Problem (bogus)
I guess I need to plan for this issue as well. Bogus, can we just order the newer style connector from GM or does it have to come from salvage sources?
I got my coils and brackets but am awaiting the arrival of the LTCC module.
I got my coils and brackets but am awaiting the arrival of the LTCC module.
Melting Slicks
Joined: Jul 1999
Posts: 2,875
Likes: 0
From: Olive Branch (Memphis suburb) MS
Cruise-In II Veteran
Re: [URGENT PROBLEM] LTCC Installation Problem (Goody)
Kevin, I think the 93 uses the four pin connector. Check it out beneath the left fuelrail cover, pretty much right in the middle. The four pin connector is grey, while the 92 six pin connector is black. Had to work this out with my dynaspark. :steering:
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (Ramrod92)
that's it...
You all have nailed it on the head... the 92 has a one year wonder connector!
What I am not sure about... the opti side of the connector... sure, the car harness side is easy to get, but what about that opti side connector?
this is what I am going to do...
knowing the connectors are A-A, B-B, C-C & D-D, and considering the connector from the LTCC is a parallel connection, it's A is he same as the A from the car harness, follow?
SO!!! I am gonna solder up the wires accordingly.
Anybody scared yet?
You all have nailed it on the head... the 92 has a one year wonder connector!
What I am not sure about... the opti side of the connector... sure, the car harness side is easy to get, but what about that opti side connector?
this is what I am going to do...
knowing the connectors are A-A, B-B, C-C & D-D, and considering the connector from the LTCC is a parallel connection, it's A is he same as the A from the car harness, follow?
SO!!! I am gonna solder up the wires accordingly.
Anybody scared yet?
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (Nathan Plemons)
Thanks!
I have been in contact with Bob! He was unaware of the uniqueness of the 92 harness.
As soon as an answer appears, I will share!
I have been in contact with Bob! He was unaware of the uniqueness of the 92 harness.
As soon as an answer appears, I will share!
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (Nathan Plemons)
The joys of owning the first year. Don't you just love your 92?
I would like to think I will keep this in mind for future consideration.
At this time, I still wait to hear from Bob, again...
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: [URGENT PROBLEM] LTCC Installation Problem (bogus)
argh!!!!!!!!!!! The gods hate me!!! IT'S RAINING!!!!!!!!
I did get the main harnesses soldered... now I need to get the coil leads soldered and the tach filter delt with...
I am a lousy 30 minutes away from completetion, and it has to friggen RAIN!!!!!!!!!!!!!! :mad :mad :mad :rolleyes: :rolleyes: :rolleyes:
I did get the main harnesses soldered... now I need to get the coil leads soldered and the tach filter delt with...
I am a lousy 30 minutes away from completetion, and it has to friggen RAIN!!!!!!!!!!!!!! :mad :mad :mad :rolleyes: :rolleyes: :rolleyes: