Forced Induction Superchargers | Turbochargers | Intercoolers

Car wont start, need your help

Thread Tools
 
Search this Thread
 
Old Apr 6, 2009 | 08:47 PM
  #1  
dreamls1's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default Car wont start, need your help

Can anyone tell me where the wire with the heat wrap go? I am not getting spark to my coils!!

Reply
Old Apr 6, 2009 | 08:51 PM
  #2  
Superman09's Avatar
LS1Tech Sponsor
20 Year Member
iTrader: (65)
 
Joined: Mar 2005
Posts: 7,234
Likes: 59
From: MI
Default

IIRC, that goes to your EGR which looks to have been deleted on your car
__________________

Featuring 6 different turbo kits for your F-body!
Check us out on Facebook at: www.facebook.com/HuronSpeed
Reply
Old Apr 6, 2009 | 08:57 PM
  #3  
dreamls1's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default

Ok cool, anyone know why it might not be fireing? It's getting fuel and oil, I don't think it's getting spark though.
Reply
Old Apr 7, 2009 | 06:36 AM
  #4  
dreamls1's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default

Anyone?
Reply
Old Apr 7, 2009 | 10:46 AM
  #5  
joblo1978's Avatar
Banned
iTrader: (14)
 
Joined: Nov 2003
Posts: 2,220
Likes: 0
From: Colorado Springs
Default

Try your ignition relay, swap it out with a fan relay.
Reply
Old Apr 7, 2009 | 11:57 AM
  #6  
ChevyChad's Avatar
8 sec potential, 12 sec slip
iTrader: (50)
 
Joined: Apr 2002
Posts: 4,092
Likes: 2
From: Savannah, GA
Default

Looks like the plug to the AC compressor.. BTW- Why is this in the FI section?
Reply
Old Apr 7, 2009 | 12:16 PM
  #7  
98Z28CobraKiller's Avatar
Restricted User
iTrader: (17)
 
Joined: Nov 2005
Posts: 5,783
Likes: 5
From: WPB, FL
Default

Make sure the crank sensor is plugged in good and that your wires aren't nicked.
Reply
Old Apr 7, 2009 | 04:01 PM
  #8  
dreamls1's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default

where is the crank sensor?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Apr 7, 2009 | 04:02 PM
  #9  
dreamls1's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default

It's in here because it's a turbo build
Reply
Old Apr 7, 2009 | 04:03 PM
  #10  
black98ws6ta's Avatar
TECH Addict
iTrader: (77)
 
Joined: May 2002
Posts: 2,107
Likes: 2
From: louisville,ky
Default

Between the starter and block. That plug is definately the a/c compressor plug, it would not have anything to do with a no-start. Check the ground on the back of the heads, and the ground on the radiator core support.

Last edited by black98ws6ta; Apr 7, 2009 at 04:19 PM.
Reply
Old Apr 8, 2009 | 07:14 AM
  #11  
dreamls1's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default

Yep forgot to plug in the cranck sensor. I am getting spark now but the car acks like it wants to start for a second, i little pop, the i pull the plugs out and they have fuel on them. I take them out and clean them and same thing. Could this be VATS? cutting my Ignition? I dont know what else it could be.
Reply
Old May 11, 2009 | 12:38 PM
  #12  
dreamls1's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Photoriffic
iTrader: (25)
 
Joined: Sep 2006
Posts: 1,051
Likes: 3
From: Bloomington, illinois
Default

well found the problem, they guy that sold me the injectors told me they were high ind. but they were low ind.
Reply
Old May 11, 2009 | 02:12 PM
  #13  
ddnspider's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Aug 2004
Posts: 14,628
Likes: 1,778
From: FL
Default

Originally Posted by dreamls1
well found the problem, they guy that sold me the injectors told me they were high ind. but they were low ind.
So now theres a 99% chance you have a fried ECU.....
Reply
Old May 11, 2009 | 04:05 PM
  #14  
98Camarod's Avatar
11 Second Club
iTrader: (43)
 
Joined: Aug 2006
Posts: 5,364
Likes: 2
From: Summerville, SC
Default

Originally Posted by ddnspider
So now theres a 99% chance you have a fried ECU.....
how so?
Reply
Old May 11, 2009 | 04:42 PM
  #15  
ddnspider's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Aug 2004
Posts: 14,628
Likes: 1,778
From: FL
Default

Its happened to plenty on here....the ECU was setup for high impedance injectors....you throw low impedance injectors on and you create a short and fry the computer.
Reply
Old May 11, 2009 | 05:54 PM
  #16  
WS6HUMMER's Avatar
10 Second Club
iTrader: (19)
 
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
Default

Originally Posted by ddnspider
Its happened to plenty on here....the ECU was setup for high impedance injectors....you throw low impedance injectors on and you create a short and fry the computer.
I never heard that before. I'm not saying your wrong but I dont see how the impedance delivered can damage the ECU.
Reply
Old May 11, 2009 | 06:01 PM
  #17  
98Camarod's Avatar
11 Second Club
iTrader: (43)
 
Joined: Aug 2006
Posts: 5,364
Likes: 2
From: Summerville, SC
Default

Originally Posted by WS6HUMMER
I never heard that before. I'm not saying your wrong but I dont see how the impedance delivered can damage the ECU.
Me either. But if its true you better watch out
Reply
Old May 11, 2009 | 06:02 PM
  #18  
zapp168's Avatar
TECH Regular
15 Year Member
iTrader: (7)
 
Joined: Jun 2005
Posts: 441
Likes: 0
From: Mass
Default

Wouldn't it over amp the injector driver circuit?
Reply
Old May 11, 2009 | 06:26 PM
  #19  
ddnspider's Avatar
10 Second Club
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Aug 2004
Posts: 14,628
Likes: 1,778
From: FL
Default

Shortest answer i could find from someone other than myself Like i said too much current, ie almost like a short.
"Why can't I run low-impedance injectors with the factory ECU?

Virtually all cars come with high-impedance injectors. The ECU turns high impedance injectors on and off with a simple switch, much like an ordinary light switch. Turn the switch on when you want fuel, turn it off when you don't.

But you can't run low-impedance injectors that way or you will burn them out! These injectors need to be carefully controlled, so a simple on/off switch will not work. They need something more like a dimmer switch. Turn them on all the way to get them to open, then after they open, turn down the dimmer so they don't get too hot.
The second problem is that the ECU's injector drivers can't handle the large electric current needed for low-impedance injectors. Low impedance injectors need about 4 times as much current as high-impedance injectors. This much current will burn out the transistors in the ECU that run the injectors, unless the injectors burn out first"
Reply
Old May 12, 2009 | 08:50 AM
  #20  
WS6HUMMER's Avatar
10 Second Club
iTrader: (19)
 
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
Default

Originally Posted by ddnspider
Shortest answer i could find from someone other than myself Like i said too much current, ie almost like a short.
"Why can't I run low-impedance injectors with the factory ECU?

Virtually all cars come with high-impedance injectors. The ECU turns high impedance injectors on and off with a simple switch, much like an ordinary light switch. Turn the switch on when you want fuel, turn it off when you don't.

But you can't run low-impedance injectors that way or you will burn them out! These injectors need to be carefully controlled, so a simple on/off switch will not work. They need something more like a dimmer switch. Turn them on all the way to get them to open, then after they open, turn down the dimmer so they don't get too hot.
The second problem is that the ECU's injector drivers can't handle the large electric current needed for low-impedance injectors. Low impedance injectors need about 4 times as much current as high-impedance injectors. This much current will burn out the transistors in the ECU that run the injectors, unless the injectors burn out first"
Ok I understand most of that but the only thing I'm not sure about is how can it burn the ECU out if the ECU is only supplying a ground pulse? When I wired in my injector driver to my lowZ injectors I found out that the pink wire (Pretty sure its pink) that goes to all the injectors on an LS1 are all hot with the key on in run. All the other wires are controlled ground pulses from the ECU.

I'm not saying your wrong at all, I'm just trying to understand how a ground pulse to a different type of injector could damage the ecu. I totaly understand how it could fry the inlector.
Reply



All times are GMT -5. The time now is 05:20 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE