92' 5.0 LX (Not starting)

roushman90 · December 16th, 2009, 03:15 PM

So heres the thing. I just traded my other car for my aunts 5.0 that has been sitting since July 09' due to it "stopping". She says that it just quit running one day, and she told me a mechanic said something about the computer being bad or a chip...So first thing I think, it needs new ECU? Oh, and it's an auto BTW.
When I got it home, it didn't even have power, battery was dead, so I swapped in another good battery and all the lights and everything work. BUT, the car just cranks but won't turnover. Mind you, this a very healthy, virgin Mustang. New off-road h-pipe exhaust, new rad, fresh battery, A/C delete.

So, is there any way to test the ECU?
My other thought is it could be the distributor?

WDfrmTN · December 16th, 2009, 04:31 PM

Originally Posted by roushman90

So heres the thing. I just traded my other car for my aunts 5.0 that has been sitting since July 09' due to it "stopping". She says that it just quit running one day, and she told me a mechanic said something about the computer being bad or a chip...So first thing I think, it needs new ECU? Oh, and it's an auto BTW.
When I got it home, it didn't even have power, battery was dead, so I swapped in another good battery and all the lights and everything work. BUT, the car just cranks but won't turnover. Mind you, this a very healthy, virgin Mustang. New off-road h-pipe exhaust, new rad, fresh battery, A/C delete.

So, is there any way to test the ECU?
My other thought is it could be the distributor?

Begin with the simple things, first.
Powers, grounds, etc..
Obvious fuses/fusible links/relays
Ignition switch.
TFI module.
If you wind up needing it, son has a C3W EEC (89-93 for auto).

roushman90 · December 16th, 2009, 06:41 PM

I forgot to mention that I am new to Mustangs, and well, domestics really. I've tinkered for a few years with Imports (240sx), but finally found a nice 5.0.

I checked all the under steering wheel fuses. I checked for spark, apparently not getting spark. Fuel pump primes. I was just wondering if there is ANY way I can take the ECU out and test it. The rotor on the dizzy does move, but I'm not sure how to tell if the dizzy is bad....

Edit: Don't know if it matters, but the firing order is correct. I'm currently looking for the fuel pump fuse.....

83 5.0 · December 16th, 2009, 10:10 PM

Here are some wiring diagrams that may help you out. American or foreign, all trouble shoot the same way, look for spark, fuel etc. you will figure it out if you give it enough time.

Mustang FAQ - Engine Information

Good Luck

86er · December 17th, 2009, 01:52 AM

if it has no fire, check the TFI module. grey block that sits under the dist with the connector on it.

simple and common problem

roushman90 · December 17th, 2009, 03:20 PM

Thanks

roushman90 · December 19th, 2009, 09:55 PM

How can I check the TFI module?

93mustanglx · December 20th, 2009, 09:10 AM

Originally Posted by roushman90

How can I check the TFI module?

Take it to an Advance Auto store. They have testers for those.

817B!GT3X · December 27th, 2009, 08:47 PM

How to Solve an EFI No Start

This helped solve my "No start issue"

electricblue87 · December 28th, 2009, 10:34 PM

It Is Most Likeley The Ignition Module.it Will Happen To Every Mustang At One Time.

December 16th, 2009, 03:15 PM	#1
roushman90 Newbie 1992 Mustang Lx (Droptop) Join Date: Dec 2009 Posts: 4 iTrader: 0 reviews	92' 5.0 LX (Not starting) So heres the thing. I just traded my other car for my aunts 5.0 that has been sitting since July 09' due to it "stopping". She says that it just quit running one day, and she told me a mechanic said something about the computer being bad or a chip...So first thing I think, it needs new ECU? Oh, and it's an auto BTW. When I got it home, it didn't even have power, battery was dead, so I swapped in another good battery and all the lights and everything work. BUT, the car just cranks but won't turnover. Mind you, this a very healthy, virgin Mustang. New off-road h-pipe exhaust, new rad, fresh battery, A/C delete. So, is there any way to test the ECU? My other thought is it could be the distributor?

December 16th, 2009, 06:41 PM	#3
roushman90 Newbie 1992 Mustang Lx (Droptop) Join Date: Dec 2009 Posts: 4 iTrader: 0 reviews	I forgot to mention that I am new to Mustangs, and well, domestics really. I've tinkered for a few years with Imports (240sx), but finally found a nice 5.0. I checked all the under steering wheel fuses. I checked for spark, apparently not getting spark. Fuel pump primes. I was just wondering if there is ANY way I can take the ECU out and test it. The rotor on the dizzy does move, but I'm not sure how to tell if the dizzy is bad.... Edit: Don't know if it matters, but the firing order is correct. I'm currently looking for the fuel pump fuse..... Last edited by roushman90; December 16th, 2009 at 07:26 PM.

December 17th, 2009, 01:52 AM	#5
86er I Post Entirely Way Too Much Join Date: Nov 2006 Location: Memphis, TN Posts: 7,626 iTrader: 0 reviews	if it has no fire, check the TFI module. grey block that sits under the dist with the connector on it. simple and common problem __________________ Just a truck 5.4 3v: 264hp 317ft lbs rock stock The "search" button, its not just for porn piecing together the next project faster than your first sexual experience

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December 16th, 2009, 10:10 PM	#4
83 5.0 Regular Join Date: Aug 2006 Location: Toronto Ont. Canada Posts: 278 iTrader: 0 reviews	Here are some wiring diagrams that may help you out. American or foreign, all trouble shoot the same way, look for spark, fuel etc. you will figure it out if you give it enough time. Mustang FAQ - Engine Information Good Luck

December 17th, 2009, 03:20 PM	#6
roushman90 Newbie 1992 Mustang Lx (Droptop) Join Date: Dec 2009 Posts: 4 iTrader: 0 reviews	Thanks

December 19th, 2009, 09:55 PM	#7
roushman90 Newbie 1992 Mustang Lx (Droptop) Join Date: Dec 2009 Posts: 4 iTrader: 0 reviews	How can I check the TFI module?

December 27th, 2009, 08:47 PM	#9
817B!GT3X Regular Join Date: May 2008 Posts: 159 iTrader: 0 reviews	How to Solve an EFI No Start This helped solve my "No start issue"

December 28th, 2009, 10:34 PM	#10
electricblue87 Newbie 87 MUSTANG GT 12.87@107 Join Date: Dec 2009 Location: NEW YORK Posts: 42 iTrader: 0 reviews	It Is Most Likeley The Ignition Module.it Will Happen To Every Mustang At One Time.

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