LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

No Start, no power to coil

Thread Tools
 
Search this Thread
 
Old 12-09-2009, 02:47 PM
  #16  
Registered User
Thread Starter
 
asia517's Avatar
 
Join Date: Feb 2005
Location: south florida
Posts: 132
Where should I go from here?
asia517 is offline  
Old 12-09-2009, 04:22 PM
  #17  
Guest
 
Guest47904's Avatar
 
Join Date: Sep 2004
Posts: 0
What is your problem more specifically than "won't start"?

Originally Posted by asia517
I checked the pink wire going to the coil for power and got nothing, where do i go from here???
Originally Posted by asia517
I went back and tested terminals "A" and "D" on the ICM harness and got 10v DC at both, I also tested terminal "B" on ac scale while cranking the motor and got between 1 and 3 volts ac. which according to shbox's website is good. What Now?

is this the pink wire test? or do I have to take the coil harness off and check the pink wire there?
First of all if you didn't have voltage at the coil, you would not have voltage on the A and D terminals of the ICM. So other than the fact that you are measuring 10 volts, you have NO problem. You can't have voltage on the ICM terminals A and D and NOT have voltage at the coil. It's impossible.

I suggest you check spark at the coil.
Guest47904 is offline  
Old 12-09-2009, 04:40 PM
  #18  
Registered User
Thread Starter
 
asia517's Avatar
 
Join Date: Feb 2005
Location: south florida
Posts: 132
check spark by pulling the plug from the coil to the opti out of the opti and look for spark?
asia517 is offline  
Old 12-10-2009, 05:26 AM
  #19  
Guest
 
Guest47904's Avatar
 
Join Date: Sep 2004
Posts: 0
You need to connect a "known good plug" to the coil

What ever way you need to do it. I would use a plug wire simply plugged into the coil and a plug connected to it. Be sure the plug is touching a good ground point. Don't use a fouled plug.

Then I want you to measure the voltage across the battery with the same meter you claimed you only have 10 volts with earlier.
Guest47904 is offline  
Old 12-18-2009, 05:42 AM
  #20  
Guest
 
Guest47904's Avatar
 
Join Date: Sep 2004
Posts: 0
Any up date???

We were just wondering if you gave up
Guest47904 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
10-31-2016 11:09 AM
maybe2fast
LT1 Based Engine Tech
9
02-05-2015 05:14 AM
ch3vyb1gbl0ck
LT1 Based Engine Tech
11
01-28-2015 04:45 PM
thenewkid
New Member Introduction
5
11-27-2014 09:41 AM
XtremeLt1
Car Audio and Electronics
12
09-13-2002 08:50 PM



Quick Reply: No Start, no power to coil



All times are GMT -5. The time now is 04:33 PM.