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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

No start with spout unplugged

  • Thread starter Thread starter Dennisfob
  • Start date Start date Aug 19, 2019
D

Dennisfob

New Member
Dec 2, 2015
5
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Aug 19, 2019
#1
  • Aug 19, 2019
  • #1
Hello, I just installed HCI on 94 Cobra. Went to check timing and now I dont have spark with spout unplugged. Will start and run with spout plugged in. Everything electronic replaced and was rechecked with old working parts- coil, dist, TFI. Any ideas?
 

96pushrod

I think they're a little easier to get off
5 Year Member
May 15, 2018
1,530
871
133
Savannah
Aug 20, 2019
#2
  • Aug 20, 2019
  • #2
I had a similar issue when I installed my 347.

1. Start it with the spout in
2. Rev it to 2500-3000, whatever it takes to keep it running.
3. Pull spout out and set timing, while keeping the engine running with your foot on the throttle.

You really need two people to do it this way. You should be good after that. Lmk if it works.
 
D

Dennisfob

New Member
Dec 2, 2015
5
-1
1
Aug 21, 2019
#3
  • Aug 21, 2019
  • #3
I tried that initially, but then discovered there is no spark at all when spout pulled. Very strange.
 
Reactions: 96pushrod

96pushrod

I think they're a little easier to get off
5 Year Member
May 15, 2018
1,530
871
133
Savannah
Aug 21, 2019
#4
  • Aug 21, 2019
  • #4
Dennisfob said:
I tried that initially, but then discovered there is no spark at all when spout pulled. Very strange.
Click to expand...

So you had the car running, then with a foot on the gas, holding the rpm to 3000, someone pulled the spout and the car just completely shut off?
 

a91what

SendMeUrDataLog
10 Year Member
Apr 6, 2011
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Hillsborough county
Aug 21, 2019
#5
  • Aug 21, 2019
  • #5
Check and see what ecu is in the car.
 
D

Dennisfob

New Member
Dec 2, 2015
5
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1
Aug 21, 2019
#6
  • Aug 21, 2019
  • #6
It appears to be the stock ECU with no chip. Everything worked prior to the install.
 
D

Dennisfob

New Member
Dec 2, 2015
5
-1
1
Aug 21, 2019
#7
  • Aug 21, 2019
  • #7
There is power to the coil but TFI doesn't ground it or Switch it with the spout unplugged ( no spark) . Initially I thought it wasn't getting 12 volts the run circuit of the TFI. But run and start appear to be on the same circuit with the coil.
 

Decipha

Active Member
Aug 22, 2007
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39
New Orleans, LA
Aug 21, 2019
#8
  • Aug 21, 2019
  • #8
the tfi ignition system is independent of the ecu. With the spout unplugged or even the ecu removed the ignition system will still function correctly.

if it doesnt then you have an ignition issue between the tfi module, pick up in the distributor and its associated wiring to the coil.
 
R

RioRed95Cobra

Active Member
Apr 7, 2017
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Aug 26, 2019
#9
  • Aug 26, 2019
  • #9
All your grounds are on?

You need to double check your marks.. the spout only allows the ECU to to control timing.. if it runs spout IN.. then the computer is compensating and making it run... once you pull it,... if you're at like.. 30* advance or whatever, that's what it's gonna try to run at.. and yeah.. it'll die....

Sounds like you're off quite a bit..

Or you have a bad ground in the computer. Do you have a spare or someone elses car you can swap with real quick and see if it runs any better?
 
D

Dennisfob

New Member
Dec 2, 2015
5
-1
1
Sep 6, 2019
#10
  • Sep 6, 2019
  • #10
RioRed95Cobra said:
All your grounds are on?

You need to double check your marks.. the spout only allows the ECU to to control timing.. if it runs spout IN.. then the computer is compensating and making it run... once you pull it,... if you're at like.. 30* advance or whatever, that's what it's gonna try to run at.. and yeah.. it'll die....

Sounds like you're off quite a bit..

Or you have a bad ground in the computer. Do you have a spare or someone elses car you can swap with real quick and see if it runs any better?
Click to expand...
Thank you sir, I appreciate the feedback. i believe the computer is shot and looking into getting another. I cleaned all grounds with no improvement.
 
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