Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Getting power to coil but not from it.

Thread Tools
 
Search this Thread
 
Old 05-25-2015, 06:50 PM
  #1  
Junior Member
Thread Starter
 
CodyCamaro's Avatar
 
Join Date: May 2015
Location: Pensacola, FL
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Car: 84 Camaro SC/88 Iroc Vert/83 z28
Engine: 350
Transmission: TH350
Axle/Gears: 3.83
Getting power to coil but not from it.

Hey there, first post from my new account after being locked out of my last one.

I have an 88 Iroc Convertible with a 350 TPI. This car has me utterly stumped. When out of the car, the motor ran completely fine. Dropped it in, wired it up and now it has no spark whatsoever.

It has a new coil (x2), new module (grease applied), new pick up coil, new electronic spark coil, new plugs and new wires.

I get power to the coil but not from the coil. I've bought 2 brand new coils so I'm convinced they aren't defective. Is there something on the inside of the car that would keep it from sparking? I've only found one thing unplugged and that was a one pronged connector with a white and an orange wire coming from it. This car also does not have VATS. Any help would be appreciated and if this is in the wrong section, I apologize.

Thanks in advance!
Old 05-25-2015, 09:19 PM
  #2  
Supreme Member

iTrader: (1)
 
LB9GTA's Avatar
 
Join Date: Mar 2004
Location: Manitoba
Posts: 1,619
Received 43 Likes on 32 Posts
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: Getting power to coil but not from it.

Any engine codes?

Do you have a spark tester?
You tested from the coil to the dizzy?
Factory coil?
Old 05-25-2015, 09:36 PM
  #3  
Junior Member
Thread Starter
 
CodyCamaro's Avatar
 
Join Date: May 2015
Location: Pensacola, FL
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Car: 84 Camaro SC/88 Iroc Vert/83 z28
Engine: 350
Transmission: TH350
Axle/Gears: 3.83
Re: Getting power to coil but not from it.

Originally Posted by LB9GTA
Any engine codes?

Do you have a spark tester?
You tested from the coil to the dizzy?
Factory coil?
Haven't had it diagnosed, truth be told. It hasn't left my shop since I pulled the motor and put it in the machine shop, put it back together and dropped it in. I don't have anything to pull codes.

Spark tester shows no spark on any plug or wire for that matter.

Coil to distributor shows nothing at all.

Factory coil was pulled and replaced with a brand new masterpro and then a brand new one after that with the fear that the first one might have been defective out of the box.

I'm getting power to the coil, but power is not coming from the coil to the distributor. I was told maybe it's the Neutral Saftey Switch????

So I bypassed it and still nothing.
Old 05-25-2015, 09:44 PM
  #4  
Supreme Member

iTrader: (4)
 
Scorpner's Avatar
 
Join Date: Sep 2004
Location: MN
Posts: 2,069
Likes: 0
Received 3 Likes on 3 Posts
Car: 85 SC, 86 Berlinetta
Engine: V6, V8
Transmission: 700r4, 700r4
Re: Getting power to coil but not from it.

Did you check the ground wire for the dizzy? Also the ground strap from the engine to the firewall?
Old 05-25-2015, 10:04 PM
  #5  
Supreme Member

iTrader: (1)
 
LB9GTA's Avatar
 
Join Date: Mar 2004
Location: Manitoba
Posts: 1,619
Received 43 Likes on 32 Posts
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: Getting power to coil but not from it.

To check for codes, run a paper clip from the A to B terminal.
Turn the ignition on (but not starting) and watch the check engine light.

It should flash a code 12(for a SD car anyway), (code 12 is normal - no reference pulse which means the ecm is working properly)
After that, it would flash a code
Old 05-26-2015, 03:13 PM
  #6  
Junior Member
Thread Starter
 
CodyCamaro's Avatar
 
Join Date: May 2015
Location: Pensacola, FL
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Car: 84 Camaro SC/88 Iroc Vert/83 z28
Engine: 350
Transmission: TH350
Axle/Gears: 3.83
Re: Getting power to coil but not from it.

Originally Posted by Scorpner
Did you check the ground wire for the dizzy? Also the ground strap from the engine to the firewall?
Checked both, nothing out of the ordinary there. Found that the white wire that runs to the distributor (tach?) had been cut so I wired it back up, no change. Been through everything twice now it seems.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Azrael91966669
DIY PROM
25
06-20-2017 04:04 AM
armybyrd
Electronics
9
12-05-2015 09:22 AM
db057
Tech / General Engine
4
08-22-2015 08:17 PM
midias
Tech / General Engine
3
08-15-2015 05:07 PM
L98GTA87
Tech / General Engine
0
08-05-2015 11:02 PM



Quick Reply: Getting power to coil but not from it.



All times are GMT -5. The time now is 07:57 PM.