C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Car is having a (wiring) meltdown...

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Old Jan 13, 2020 | 12:48 PM
  #41  
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[QUOTE=Saftie;1600789348]
Originally Posted by WVZR-1
Hey, mind to explain why?
Not gonna fit?
If you don't know or understand specifically what's needed it's a 'foolish' move on your part. Is it close by and easy to put your hands on before you pay?

IF IT AIN'T AND YOU DON'T KNOW - DO NOT BUY

Last edited by WVZR-1; Jan 13, 2020 at 12:48 PM.
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Old Jan 15, 2020 | 05:29 PM
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https://aeromotive.us/industries/aut...otive-harness/ They can make your harness as new. Not cheap though. I have used them before.
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Old Jan 15, 2020 | 05:44 PM
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Nice, thank you.
Best i pull the harness first and take pics and send them over
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Old Jan 15, 2020 | 06:00 PM
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Originally Posted by Saftie
Nice, thank you.
Best i pull the harness first and take pics and send them over

Removal ain't for the 'novice' either! You need to be prepared to offer up original harness #'s also and I'd suggest you accomplish that 1st.

If you posted a snapshot of the SPID label there's several of us that could likely ID the part #'s for the complete car. Which specific harness(s) do you feel you need?

Last edited by WVZR-1; Jan 15, 2020 at 06:07 PM.
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Old Jan 15, 2020 | 06:13 PM
  #45  
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that first picture of the wires.. but that tire.... that thing has been in or near a fire and gotten very hot... in fact after looking again..... about every picture i see fire damage to wiring/components. might be a good option to make it brain dead and ditch the electronics all together old school 385 action torque monster. beauty of that is with the manual trans you do not need to worry about tranny issues with no wiring

Last edited by bud40oz; Jan 15, 2020 at 06:19 PM.
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Old Feb 1, 2020 | 06:14 PM
  #46  
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Finally found time to get started on pulling the wiring. So far so good, no wiring damage towards front of the car. Everything seems to be concentrated near the firewall.

I label every connector and take a pic. While I am at it I will replace all vacuum lines. Never liked those plastic tubes, especially when that old.
The only difficulty I ran into so far are the two driver side connectors on the firewall next to the battery. They don't want to disconnect. Need to figure out how to get to the release clamp towards the brake booster.




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Old Feb 1, 2020 | 08:58 PM
  #47  
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if it's like on my 90 there is a screw thats buried in the bulkhead connector that holds it in place.
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Old Feb 1, 2020 | 09:13 PM
  #48  
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Now that you mention it, I did read about that. Great. Well, I only tried for a half a min and then moved on. Was not there yet anyway.
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Old Feb 3, 2020 | 06:39 AM
  #49  
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Pulled fuel rail and plenum headers.
Fuel injectors all dirty:
https://www.dropbox.com/s/wqsnabp5tl...62946.jpg?dl=0

Manifold is gross:
https://www.dropbox.com/s/jehmi5xjg6...62924.jpg?dl=0

Thinking of maybe pulling the manifold to give it a good cleaning. This way I can replace the gaskets as well. Not sure if they are damaged..
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Old Feb 3, 2020 | 09:33 AM
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Originally Posted by Saftie
Pulled fuel rail and plenum headers.
Fuel injectors all dirty:
https://www.dropbox.com/s/wqsnabp5tl...62946.jpg?dl=0

Manifold is gross:
https://www.dropbox.com/s/jehmi5xjg6...62924.jpg?dl=0

Thinking of maybe pulling the manifold to give it a good cleaning. This way I can replace the gaskets as well. Not sure if they are damaged..

absolutely 100% positive you want to pull the intake manifold.

the condition of that is appalling. i take them and pressure wash them then give them an eagle 1 treatment to brighten them up as new.

search google for that it will lok new. u will want to refinish your vc’s as well. that takes pressure washing and then paint stripper applications while covered in a garbage bag. then pressure wash and light sand then paint and 2part clear in can. ive had awesome results with kids acryllic paint and very fine brush and toothpick to repaint badge. then 2k clear it while clearing the vc’s. then scuff paint in the badge mounting location and underside of badge and jbweld it on.

entire engine gasket kits can be picked up on RA for very cheap. i use hylomar on my gaskets....but not necessary.

obey aaaallllll torque specs and totque bolt patterns!! have fun!
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Old Feb 3, 2020 | 10:29 AM
  #51  
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Is that a piece of Romex house wiring under there?
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Old Feb 3, 2020 | 10:33 AM
  #52  
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Originally Posted by 81c3
Is that a piece of Romex house wiring under there?
Where?
Oh, if you mean under the dash and what you see in the engine bay then yes. Someone wired up a push button and ran this across the engine bay to the starter. Already melted and exposed live wire
​​​

Last edited by Saftie; Feb 3, 2020 at 10:41 AM.
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Old Feb 4, 2020 | 08:38 AM
  #53  
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Going to replace injectors and am looking at these:
https://fuelinjectorconnection.com/p...sch-design-iii

From what I am reading the car needs 22lb injectors. Anything bad about them? Reason I am asking is that all other vendors are selling injectors around the $300 range.
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Old Feb 4, 2020 | 09:25 AM
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Those are exactly the right injectors. That is exactly what I put on mine. from fic.

get new orings with them. they may actually come with them but verify. i cant remember.

i assume u r cleaning everything!!! very light coat of engine oil to press injectors in.
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Old Feb 4, 2020 | 09:34 AM
  #55  
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Yepp, going to clean everything. Already ordered all necessary gaskets, including the intake manifold ones.

Thanks for confirming the injectors, I will order them.
I will probably replace the egr valve as well. I noticed that there is a connector on the fuel rail, passenger side, that had nothing connected. Seeing online that there is an egr wire, I assume it might plug into there. Missing on mine


Two of the current injectors were pretty lose. Really amazed that the car was running and driving with all of what's going on. Really growing on me and can't wait to have her back on the road. I only drove her home back then when I got her.

​​​​​​
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Old Feb 4, 2020 | 02:54 PM
  #56  
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Here a pic of the above mentioned connection that had nothing plugged into...


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Old Feb 4, 2020 | 03:41 PM
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Originally Posted by Saftie
Here a pic of the above mentioned connection that had nothing plugged into...

that is were you would hook up your fuel pressure gage to, that is a schrader valve and should have a screw on cap.
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Old Feb 4, 2020 | 03:46 PM
  #58  
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Originally Posted by eutu1984
that is were you would hook up your fuel pressure gage to, that is a schrader valve and should have a screw on cap.
Oh I see, so it's basically just for trouble shooting, not operational.
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Old Feb 4, 2020 | 03:53 PM
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Originally Posted by Saftie
Oh I see, so it's basically just for trouble shooting, not operational.
yes you should find a cap for it just to play it safe, it would be a shame if gas starts squirting out after all your hard work
and you end up have a car fire.
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Old Feb 4, 2020 | 03:56 PM
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Originally Posted by eutu1984
yes you should find a cap for it just to play it safe, it would be a shame if gas starts squirting out after all your hard work
and you end up have a car fire.
Yes, definitely don't want that...
Thanks much for the info...
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