Fuel Mass air identify question.

S

slandis3

New Member

Jun 30, 2020

7

0

1

Tipp City Ohio

Jun 30, 2020

#1

• Jun 30, 2020

• #1

Hey guys, just bought an 87 project car and I am trying to track down what all they have done to the car. It has been converted to mass air, I was told 24# injectors and matching mass air. After looking through some threads here I don't believe that is what the car has. The injectors are orange in color, the mass air is marked,
F4SF-12B579-AA
AFHYO-O2A.

The car runs but is running extremely rich. Has an MSD ignition coil, pro distributor and 6AL box, Elderbrock intake, full length headers, EGR delete and under drive pulleys . Any help will be appreciated. Thanks

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,176

17,879

224

Massachusetts

Jun 30, 2020

#2

• Jun 30, 2020

• #2

94-95 thunderbird/cougar MAF which is a 70mm unit. It is suspected that it is compatible with the a9x but not confirmed.

orange top injectors are 19#.

 

S

slandis3

New Member

Jun 30, 2020

7

0

1

Tipp City Ohio

Jun 30, 2020

#3

• Jun 30, 2020

• #3

Thanks, now I need to figure out why its running so rich.

 

General karthief

wonder how much it would cost to ship you a pair

5 Year Member

Aug 25, 2016

27,844

10,520

203

polk county florida

Jun 30, 2020

#4

• Jun 30, 2020

• #4

Have you pulled codes yet?

 

S

slandis3

New Member

Jun 30, 2020

7

0

1

Tipp City Ohio

Jun 30, 2020

#5

• Jun 30, 2020

• #5

General karthief said:

Have you pulled codes yet?

Click to expand...

No, not even sure if the connector is still there. They have cut a bunch of wires off, there is a relay on the passenger side under the air filter with a wire thats just stripped and hanging there. Need to pull my books out and track down what I am missing and make sure they didn't cut something necessary. I guess they were trying to make a drage car out of it and lost interest. Once I find the connector for the code reader I will pull the codes.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,176

17,879

224

Massachusetts

Jun 30, 2020

#6

• Jun 30, 2020

• #6

Well that MAF may not be conpatible. The F2VF sensor will work in that housing but not sure if the F4 sensor will

 

Reactions: slandis3

S

slandis3

New Member

Jun 30, 2020

7

0

1

Tipp City Ohio

Jun 30, 2020

#7

• Jun 30, 2020

• #7

Ok that could explain some of the fuel issues then. I did go to pull the codes and the check engine light on the dash doesn't work, go figure lol. If I remember I can use an old test light to get the flashes but Ill have to look through my books. Haven't had a fox body since 2005 so I am a lot rusty on working on them.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,176

17,879

224

Massachusetts

Jun 30, 2020

#8

• Jun 30, 2020

• #8

87s arent wired for mass air, and therefor no functional check engine light. You can convert to mass air, but without specific wiring the cel still won’t work. You’ll need to use a test light, or a code scanner

 

S

slandis3

New Member

Jun 30, 2020

7

0

1

Tipp City Ohio

Jun 30, 2020

#9

• Jun 30, 2020

• #9

Mustang5L5 said:

87s arent wired for mass air, and therefor no functional check engine light. You can convert to mass air, but without specific wiring the cel still won’t work. You’ll need to use a test light, or a code scanner

Click to expand...

Well that explains it, my last was an 89 so I have to get used to this 87. I will check it out tomorrow and report back that codes. Thanks for the help guys.

 

General karthief

wonder how much it would cost to ship you a pair

5 Year Member

Aug 25, 2016

27,844

10,520

203

polk county florida

Jun 30, 2020

#10

• Jun 30, 2020

• #10

Progress Thread - Technical Thread/how-to Index

Guys, if "that should be a sticky," then please reply to this thread with the link to your suggestion and why you think it should be added. How to determine if a thread should be included: - Does the topic address a common fox 5.0 owner's needs? / Is it a frequently asked question? / Is it...

www.stangnet.com

You can find a lot of good info here

 

S

slandis3

New Member

Jun 30, 2020

7

0

1

Tipp City Ohio

Jul 10, 2020

#11

• Jul 10, 2020

• #11

OK guys been a while since I was able to mess with the car. Found my vacuum leak, upper intake has a large crack in it. Also after looking at the computer I discovered it also came out of a Thunderbird like the mass air unit. Pretty sure this wont work and I will need to find a A9L computer if I want things to work correctly. How hard is it to find these computers now?

 

General karthief

wonder how much it would cost to ship you a pair

5 Year Member

Aug 25, 2016

27,844

10,520

203

polk county florida

Jul 10, 2020

#12

• Jul 10, 2020

• #12

Stock upper?

 

S

slandis3

New Member

Jun 30, 2020

7

0

1

Tipp City Ohio

Jul 10, 2020

#13

• Jul 10, 2020

• #13

General karthief said:

Stock upper?

Click to expand...

No it has the Edelbrock with the removable end cap. Pain in the butt to pull off the car lol

 

Last edited: Jul 10, 2020