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

does anyone know where...

Thread Tools
 
Search this Thread
 
Old Aug 23, 2013 | 09:54 PM
  #1  
rgouette's Avatar
rgouette
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2013
Posts: 400
Likes: 43
From: Auburn Maine
Default does anyone know where...

Circuit#450(I think) which is pins 9&12 on the ECU(white) connector might go to?(they're sposed to be grounded...and I was wondering if folks know where they might tie into ground..

and part two of the question:

I have two black ground wires that are connected to ground via eyelets on a bolt in the passenger side well, on the right side.(just under the plastic leg kick panel)
Any chance these two wires are supposed to be the #9 # 12 wires off the ECU plug mentioned above?

Rich
Reply
Old Aug 24, 2013 | 12:15 AM
  #2  
cessnaguy1965's Avatar
cessnaguy1965
Racer
10 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2012
Posts: 256
Likes: 1
From: Taylorville IL
Default

What year Corvette are we talking about here? Straight shift or auto? Any mods? I have learned that this site is a very good place for info, but most, if not all of the Guru's need a starting point. Do you have a Factory Service Manual? If not, locate one.

Cessnaguy
Reply
Old Aug 24, 2013 | 12:45 AM
  #3  
vetteoz's Avatar
vetteoz
Safety Car
20 Year Member
 
Joined: Jan 2004
Posts: 3,556
Likes: 12
Default

Originally Posted by celticpiping
which is pins 9&12 on the ECU connector might go to?(they're sposed to be grounded...and I was wondering if folks know where they might tie into ground..
ECM grounds usually terminate at the large bolt on the engine block above the oil filter
Reply
Old Aug 24, 2013 | 06:40 AM
  #4  
rgouette's Avatar
rgouette
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2013
Posts: 400
Likes: 43
From: Auburn Maine
Default

Originally Posted by vetteoz
ECM grounds usually terminate at the large bolt on the engine block above the oil filter
ok, thanks mate for that tidbit, I'll check it out
Reply
Old Aug 24, 2013 | 09:25 PM
  #5  
rgouette's Avatar
rgouette
Thread Starter
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2013
Posts: 400
Likes: 43
From: Auburn Maine
Default

well well, that was a brilliant one mate!
I actually found a black wire, CAPPED OFF nearby the oil fill...
It read short to pins 6 & 12 on ECU white conn!
Why it was capped off, and also how that injector ever fired I dunno..
But I now have power to the fwd injector.

Thanks!
R
Reply

Get notified of new replies

To does anyone know where...





All times are GMT -4. The time now is 12:32 PM.

story-0
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-1
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-2
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-3
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-4
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-5
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-6
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-7
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-8
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE
story-9
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette

Slideshow: Check out these easy-to-install upgrades from Extreme Online Store that reshape the look and feel of the C6 Corvette.

By Pouria Savadkouei | 2026-03-23 17:00:27


VIEW MORE