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Hello !Frank from Fl. ,

P

Paco5.0

New Member
I have a 93 Mustang , at the moment is not firing the injectors. went of to a Vacation when I came back and try to start it cranks but that's all he does. it has good fire in the spark plugs, 40 # at the fuel gage ,it cranks but does not start. Any one has come across this problem ?? Paco5.0
 
Paco5.0 said:
I have a 93 Mustang , at the moment is not firing the injectors. went of to a Vacation when I came back and try to start it cranks but that's all he does. it has good fire in the spark plugs, 40 # at the fuel gage ,it cranks but does not start. Any one has come across this problem ?? Paco5.0
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Welcome to the group! The issue you're describing is probably a bad ecm. There are, iirc, 3 capacitors in them and they're a common problem. You can replace the ecm with a good used one, find someone to repair it, or just do it yourself. I believe there's a YouTube video that shows how. I had a local guy fix one just a couple months ago. I gave him $40 and I found the capacitors for $20 on Ebay (although you can find them for a couple bucks, if you know what you're looking for).

The tfi module, I believe, also controls injector pulse, although somewhat indirectly (through the ecm). To rule that out, you can remove it and most of the parts stores can bench test them. They also sell a small tool for the module. It makes it much easier to get off. I suggest keeping that tool and a spare module in the car, if you can.
 
broncojunkie said:
Welcome to the group! The issue you're describing is probably a bad ecm. There are, iirc, 3 capacitors in them and they're a common problem. You can replace the ecm with a good used one, find someone to repair it, or just do it yourself. I believe there's a YouTube video that shows how. I had a local guy fix one just a couple months ago. I gave him $40 and I found the capacitors for $20 on Ebay (although you can find them for a couple bucks, if you know what you're looking for).

The tfi module, I believe, also controls injector pulse, although somewhat indirectly (through the ecm). To rule that out, you can remove it and most of the parts stores can bench test them. They also sell a small tool for the module. It makes it much easier to get off. I suggest keeping that tool and a spare module in the car, if you can.
Click to expand...
Thanks in Advance, I will start working on that. get back to you with the results.
 
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