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

car wont start

Thread Tools
 
Search this Thread
 
Old Feb 9, 2009 | 12:23 PM
  #1  
Drew24's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 300
car wont start

probably getting sick of me keep asking questions i just replaced the opti spark and made sure the dowel was correctly placed in so i put it all back together and started it up and all it does is just turn over. I took off the coil wire and replaced it and my plug wires. I took off a spark plug to see if it would arch and it didnt. I took off the optispark and the dowel is in the correct position dont know why its not working anything suggestions on what it might be
Old Feb 9, 2009 | 12:30 PM
  #2  
camzaro28's Avatar
Registered User
 
Joined: Apr 2004
Posts: 1,046
From: Fargo, ND
me and another guy on here are having similar issues and ares might just be a bad PCM.

Do you have spark anywhere?
If I were in your shoes at this point, I would go to harbor freight or advanced and buy a noid test light kit. should run you less than 15$
Old Feb 9, 2009 | 12:39 PM
  #3  
Drew24's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 300
well when i had it put back together i had no spark anywhere which makes me think the opti dowel isnt positioned right is there a different way you can position it easier or could it be a faulty ground i didnt put back on
Old Feb 9, 2009 | 12:44 PM
  #4  
camzaro28's Avatar
Registered User
 
Joined: Apr 2004
Posts: 1,046
From: Fargo, ND
I had bought and installed my opti 4 times before ruling it out. I put a piece of gum in the opti dowel to make sure the cam was going in. If you look a few post under this, under a member named IPRICE, you can assess your situation from his.
Not sure about the ground, but could be a possibility.

I am still all for the noid light, its a very simple procedure.just unclip a fuel injector clip and plug the light in. Start the car and see if the noid light lights up.
If it doesnt light up, the PCM is not sending the signal. Either due to, PCM not getting signal from opti, or wires from opti to PCM are bad. If it does light atleast you know you are getting fuel and can rule the PCM out and now you would know that it is the ignition system at fault.
Old Feb 9, 2009 | 12:49 PM
  #5  
Drew24's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 300
haha a piece of gum did it work and where is the pcm located i have no idea what that is
Old Feb 9, 2009 | 12:58 PM
  #6  
camzaro28's Avatar
Registered User
 
Joined: Apr 2004
Posts: 1,046
From: Fargo, ND
pcm is computer
passenger side engine bay, near firewall, bunch of wires leading to it.
Old Feb 9, 2009 | 01:02 PM
  #7  
Drew24's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 300
oh ok well i was just checking everything and all i can find wrong was that i am missing a bolt that goes into the harmonic balancer like the dead center that wouldnt have anything to do with it would it
Old Feb 9, 2009 | 01:04 PM
  #8  
camzaro28's Avatar
Registered User
 
Joined: Apr 2004
Posts: 1,046
From: Fargo, ND
doubt it, if anything that might make it run rough, but still wouldnt affect the starting. GL Im heading back to work.
Go buy noid test light, DVM, test light.
Old Feb 9, 2009 | 02:48 PM
  #9  
Drew24's Avatar
Thread Starter
Registered User
 
Joined: Oct 2008
Posts: 300
im having a remembering issue does the alternator have any other type of wires on the back side where the positive wire is

Last edited by Drew24; Feb 9, 2009 at 03:11 PM.
Old Feb 9, 2009 | 04:00 PM
  #10  
94SLUG's Avatar
Registered User
 
Joined: Oct 2002
Posts: 856
From: Denver
ICM Ignition Control Module....Good Luck..
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Noenav
Cars For Sale
2
Mar 1, 2019 07:38 AM
97SSdude
LT1 Based Engine Tech
9
Dec 31, 2014 07:43 PM
tds1213
General 1967-2002 F-Body Tech
1
Nov 27, 2014 12:55 PM
USAirman93
General 1967-2002 F-Body Tech
4
Nov 24, 2014 03:37 PM
Dave19yz28
LT1 Based Engine Tech
7
Jan 26, 2003 01:45 PM




All times are GMT -5. The time now is 05:35 AM.