How do I know if my car is EEC or Non EEC?

alan300 · 11-02-2001, 10:15 AM

I'm looking at buying a new rotor and cap kit for my 1991 Mustang GT. But there are two types. A Kit for EEC and a kit for Non EEC. How do I know which is for my car?

Thanks!

Alan
alan300@hotmail.com

Chevyguy · 11-02-2001, 10:28 AM

Easy, the EEC IV system came out in 84 and was used till 95 in all Mustangs, so you have a EEC system if the engine is stock.

FYI the difference from Duraspark to EEC is that the EEC has no mechanical or vaccum advance provisions, hence the rotor is fixed on the distributor shaft. Also the presence of the imfamous TFI module on the side of the distributor signals a EEC system.

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Frank W 90 5.0 LX Notch MAC 2.5"cat bk FMS alu ds, MSD coil, MAC shifter 2.73 gears user site
My 90 Notch and 88 2.3 Notch(88 for sale)
74 Chevy Laguna Type S-3 305 now 454 soon My web site

alan300 · 11-02-2001, 10:31 AM

Sweet! Thanks alot! I appreciate the help!

Alan

PKRWUD · 11-02-2001, 11:05 AM

Ya know Frank, for a Chevy guy, you're pretty sharp.

Take care,
-Chris

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Retired Moderator
MustangNet

My site: Peckerwoods Pit Stop

My teams site: Jim Porter Racing

RACECAR spelled backwards is RACECAR

HEY !!! Are you ASE Certified ??? If you are, ask me about iATN.

Chevyguy · 11-02-2001, 11:40 AM

I usually pick stuff up along the way and remember the little tricks I had to figure out the hard way. I worked on a 84 3.8 Ragtop and it could have had a Duraspark or EEC system depending on the build date, I nailed it the first try the parts guy was suprised I knew what I was looking for

------------------
Frank W 90 5.0 LX Notch MAC 2.5"cat bk FMS alu ds, MSD coil, MAC shifter 2.73 gears user site
My 90 Notch and 88 2.3 Notch(88 for sale)
74 Chevy Laguna Type S-3 305 now 454 soon My web site

11-02-2001, 10:15 AM	#1
alan300 Registered Member Join Date: Nov 2001 Location: Rowlett, Texas Posts: 2	How do I know if my car is EEC or Non EEC? I'm looking at buying a new rotor and cap kit for my 1991 Mustang GT. But there are two types. A Kit for EEC and a kit for Non EEC. How do I know which is for my car? Thanks! Alan alan300@hotmail.com

11-02-2001, 10:28 AM	#2
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	Easy, the EEC IV system came out in 84 and was used till 95 in all Mustangs, so you have a EEC system if the engine is stock. FYI the difference from Duraspark to EEC is that the EEC has no mechanical or vaccum advance provisions, hence the rotor is fixed on the distributor shaft. Also the presence of the imfamous TFI module on the side of the distributor signals a EEC system. ------------------ Frank W 90 5.0 LX Notch MAC 2.5"cat bk FMS alu ds, MSD coil, MAC shifter 2.73 gears user site My 90 Notch and 88 2.3 Notch(88 for sale) 74 Chevy Laguna Type S-3 305 now 454 soon My web site

11-02-2001, 10:31 AM	#3
alan300 Registered Member Join Date: Nov 2001 Location: Rowlett, Texas Posts: 2	Sweet! Thanks alot! I appreciate the help! Alan

11-02-2001, 11:05 AM	#4
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Ya know Frank, for a Chevy guy, you're pretty sharp. Take care, -Chris ------------------ Retired Moderator MustangNet My site: Peckerwoods Pit Stop My teams site: Jim Porter Racing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN.

11-02-2001, 11:40 AM	#5
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	I usually pick stuff up along the way and remember the little tricks I had to figure out the hard way. I worked on a 84 3.8 Ragtop and it could have had a Duraspark or EEC system depending on the build date, I nailed it the first try the parts guy was suprised I knew what I was looking for ------------------ Frank W 90 5.0 LX Notch MAC 2.5"cat bk FMS alu ds, MSD coil, MAC shifter 2.73 gears user site My 90 Notch and 88 2.3 Notch(88 for sale) 74 Chevy Laguna Type S-3 305 now 454 soon My web site