This is topic My stang is alive again in forum Tech Talk at Northern California Ford Owners  .


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Posted by 94OnDuces (Member # 9555) on :
 
my 94 mustang gt has a problem with starting so im looking for someone who can come check it out asap lmk thanks problems are alreadly listed in tech talk


Problem solved...
Dead wiring harness caused a short somehow to the fuel pump relay dont know how but thats what did it. Anyone know how that could have happened?

[ February 20, 2011, 09:55 PM: Message edited by: 94OnDuces ]
 

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Posted by 94OnDuces (Member # 9555) on :
 
Ttt
 

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Posted by T-TopTerror (Member # 480) on :
 
If you lived in Roseville....
 

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Posted by 94OnDuces (Member # 9555) on :
 
Ttt
 

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Posted by copcar (Member # 10113) on :
 
Bump for a really good guy.
 

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Posted by CobramanPhil (Member # 2170) on :
 
What are the symptoms...hard starting..cranking, but not turning over...should be easy to narrow it down if you have more details
 

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Posted by 94OnDuces (Member # 9555) on :
 

quote:

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Originally posted by CobramanPhil:
What are the symptoms...hard starting..cranking, but not turning over...should be easy to narrow it down if you have more details

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quote:

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Originally posted by 94OnDuces:

quote:

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Originally posted by CobramanPhil:
What are the symptoms...hard starting..cranking, but not turning over...should be easy to narrow it down if you have more details

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fuel pump doesnt prime,

so ive changed the fuel pump,relay,fuses, computer and ive checked for any disconnected lines.

Theres power in all the lines I had a member test with a multimeter.

If I run a 12v to the pump direct it sends fuel thru the rails but its as if the injectors arent on even tho they have power

Not sure what else I can do

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does it have spark?

is the "THEFT" light flashing when cranking?
 

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Posted by 94OnDuces (Member # 9555) on :
 
Theft light doesnt flash
yes it has spark and its not weak
 

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Posted by 94OnDuces (Member # 9555) on :
 
Theft light doesnt flash
yes it has spark and its not weak
 

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Posted by Mach 5oh (Member # 9497) on :
 
ccrm?
 

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Posted by OneFastNotch. (Member # 9537) on :
 
check all grounds. injector harness?
 

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Posted by 90FoX (Member # 1974) on :
 
you said all lines have been tested...what do you mean by all lines?

check out this thread might have some good info for you

http://mustangforums.com/forum/5-0l-1979-1995-mustang/360644-no-power-to-fuel-pump-sn95-2.html
 

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Posted by 90FoX (Member # 1974) on :
 
Also check out this diagram. Seems from the PCM power relay the power goes to the fuel pump relay and then to all the other shit its connected to.

Have you checked your PCM power relay? Seems to me if your injectors aren't getting power and your fuel pump isnt priming then it very well might be the PCM power relay or one of the connections to it. Keep us posted


[ February 13, 2011, 03:18 AM: Message edited by: 90FoX ]
 

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Posted by 94OnDuces (Member # 9555) on :
 
Ive swapped the ccrm and it had power where it was suppose to

Havent checked the pcm so that might turn out to be my problem ill update you guys with the results thanks for the help yall
 

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Posted by 90FoX (Member # 1974) on :
 
Any updates?
 

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Posted by 94OnDuces (Member # 9555) on :
 
I found out if the inertia switch is unplugged the fuel pump has 10.2volts but if its plugged up it has no power at all and the switch works fine ive checked it with a known working one
 

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Posted by 90FoX (Member # 1974) on :
 

quote:

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Originally posted by 94OnDuces:
I found out if the inertia switch is unplugged the fuel pump has 10.2volts but if its plugged up it has no power at all and the switch works fine ive checked it with a known working one

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quote:

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Originally posted by 90FoX:

quote:

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Originally posted by 94OnDuces:
I found out if the inertia switch is unplugged the fuel pump has 10.2volts but if its plugged up it has no power at all and the switch works fine ive checked it with a known working one

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weird...not sure what would cause this...have you rewired something back there? is it possible to have the inertia switch in backwards?

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