TFI Module Question

Tincan18 · 10-06-2004, 12:54 AM

After posting many Q's about problems with my 1994 Mustang 5.0 and how sluggish it is off the line. I came across people with the same problem talking about something called a TFI Module? What is it? Most importantly would it affect my gas mileage cause i am getting 12-13 MPG and driving it like a grandma. Is there anthing else that could be causing this? NEED HELP!!!! Thank You

Tincan18 · 10-06-2004, 12:57 AM

it is also hard to start at times for example: After driving it around and i shut it off...... I go to start it again and it cranks over just fine but it gets to the point were it goes long enough were it starts to grind the starter or soemthing and it wont start!!! Very Embarrasing!!

GhettoPop · 10-06-2004, 08:36 AM

change the TFI module, its cheap insurance. they go bad all the time, and even if its not your problem, it will be at some point, and u'll be happy to have the spare in your trunk!

88fivepointoh · 10-07-2004, 02:57 PM

Exactly what ghettopop said... they are cheap and cause all sorts of random problems. And not starting is one of them. also check your coil too.

gtnby2 · 10-11-2004, 09:22 PM

It controls the amount of spark dwell. On a 5-0 , it is mounted on the side of the distributor.

10-06-2004, 12:54 AM	#1
Tincan18 Registered Member Join Date: Sep 2003 Posts: 16	TFI Module Question After posting many Q's about problems with my 1994 Mustang 5.0 and how sluggish it is off the line. I came across people with the same problem talking about something called a TFI Module? What is it? Most importantly would it affect my gas mileage cause i am getting 12-13 MPG and driving it like a grandma. Is there anthing else that could be causing this? NEED HELP!!!! Thank You __________________ Tincan18

10-06-2004, 12:57 AM	#2
Tincan18 Registered Member Join Date: Sep 2003 Posts: 16	it is also hard to start at times for example: After driving it around and i shut it off...... I go to start it again and it cranks over just fine but it gets to the point were it goes long enough were it starts to grind the starter or soemthing and it wont start!!! Very Embarrasing!! __________________ Tincan18

10-06-2004, 08:36 AM	#3
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	change the TFI module, its cheap insurance. they go bad all the time, and even if its not your problem, it will be at some point, and u'll be happy to have the spare in your trunk! __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

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10-07-2004, 02:57 PM	#4
88fivepointoh Registered Member Join Date: Aug 2002 Location: Rochester Posts: 553	Exactly what ghettopop said... they are cheap and cause all sorts of random problems. And not starting is one of them. also check your coil too.