T O P I C R E V I E W
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94OnDuces
Member # 9555
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posted
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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94OnDuces
Member # 9555
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posted
Ttt
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T-TopTerror
Member # 480
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posted
If you lived in Roseville....
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94OnDuces
Member # 9555
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posted
Ttt
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copcar
Member # 10113
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posted
Bump for a really good guy.
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CobramanPhil
Member # 2170
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posted
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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94OnDuces
Member # 9555
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posted
quote: 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
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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chevy_killer
Member # 9050
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posted
Inertia switch???
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94OnDuces
Member # 9555
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posted
Yup has power and has been swapped
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Blind
Member # 3052
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posted
quote: Originally posted by 94OnDuces: quote: 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
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
does it have spark?
is the "THEFT" light flashing when cranking?
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94OnDuces
Member # 9555
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posted
Theft light doesnt flash yes it has spark and its not weak
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94OnDuces
Member # 9555
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posted
Theft light doesnt flash yes it has spark and its not weak
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Mach 5oh
Member # 9497
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posted
ccrm?
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OneFastNotch.
Member # 9537
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posted
check all grounds. injector harness?
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90FoX
Member # 1974
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posted
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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90FoX
Member # 1974
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posted
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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94OnDuces
Member # 9555
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posted
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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90FoX
Member # 1974
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posted
Any updates?
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94OnDuces
Member # 9555
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posted
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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90FoX
Member # 1974
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posted
quote: 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
weird...not sure what would cause this...have you rewired something back there? is it possible to have the inertia switch in backwards? I don't understand how the fuel pump can get any power without the switch in place... [ February 16, 2011, 05:59 AM: Message edited by: 90FoX ]
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OneFastNotch.
Member # 9537
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posted
quote: Originally posted by 90FoX: quote: 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
weird...not sure what would cause this...have you rewired something back there? is it possible to have the inertia switch in backwards?
im thinking this.
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90FoX
Member # 1974
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posted
and also do the injectors get power when you pull the inertia switch? or are they still powerless?
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84SVOrick
Member # 9039
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posted
Id use a noid lite on the injectors jus for shits an giggles to rule out that possiblity
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fredfifty
Member # 10320
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posted
old post i know...wondering what the outcome was
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