Where is the MAF?

Luis911

Member

Nov 9, 2005

114

0

17

Mexico City

Nov 21, 2005

#1

• Nov 21, 2005

• #1

I have mustang 81 conv. 90, 5.0 HO EFI, T5. Question: Where is the MAF? I see only TPS, IAC and Body torthle. Thanks

 

Michael Yount

Mustang Master

Apr 10, 2002

9,039

6

79

Charlotte, NC

Nov 21, 2005

#2

• Nov 21, 2005

• #2

Not sure I understand your description - 90 engine/tranny in an 81 body?

The maf should be located in the air inlet piping in between the throttle body and the air filter. Hard to miss - has a plug from the wiring harness plugged into it.

 

srothfuss

Last night I stabbed the same guy 7 times in a row

Oct 17, 2004

1,796

3

0

Woodward Ave.

Nov 21, 2005

#3

• Nov 21, 2005

• #3

I thought the MAF was in the engine bay.... after the airfilter in the intake tract.

 

Michael Yount

Mustang Master

Apr 10, 2002

9,039

6

79

Charlotte, NC

Nov 21, 2005

#4

• Nov 21, 2005

• #4

Maybe someone put one of the CAI's on the car that puts the maf in the fenderwell...

 

J

jerryD

Founding Member

Mar 16, 2000

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Gladstone, MO

Nov 21, 2005

#5

• Nov 21, 2005

• #5

here is a pic of the stock setup

 

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Luis911

Member

Nov 9, 2005

114

0

17

Mexico City

Nov 22, 2005

#6

• Nov 22, 2005

• #6

I don't have MAF between air filter and body thortle. I will upload a photo. Thanks

 

95COBRA241

New Member

Sep 3, 2005

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Delray Beach, FL

Nov 22, 2005

#7

• Nov 22, 2005

• #7

Then you have what is known as a SPEED DENSITY system.

 

Luis911

Member

Nov 9, 2005

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Mexico City

Nov 22, 2005

#8

• Nov 22, 2005

• #8

Speed dendity? ok and which is value of volt on TPS, I try 0.98-0.99 but RPM ~1,500, and then set 0.80 and RPM 900-1,100

 

BlooDReigN

Member

Feb 22, 2004

283

1

16

Calgary, Alberta

Nov 22, 2005

#9

• Nov 22, 2005

• #9

Nope, no MAF there! lol

 

91ghp5.0

Active Member

May 25, 2005

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28

Somewhere

Nov 22, 2005

#10

• Nov 22, 2005

• #10

thats speed density. and is that an 81, or a 91?

 

_jb_

New Member

Mar 4, 2004

808

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Michigan, Berrien County

Nov 22, 2005

#11

• Nov 22, 2005

• #11

Pre 89's were speed density engines, exluding California 88 cars. Another way to check to see if your car is speed density is to see it the BAR/MAP sensor is connected to the intake. It's the black box thing mounted on the firewall right behind the upper intake.

 

_jb_

New Member

Mar 4, 2004

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Michigan, Berrien County

Nov 22, 2005

#12

• Nov 22, 2005

• #12

Ok, look at the pic JerryD posted. Number 45 is the black box I'm talking about. If that is connected to the intake, it's speed density. You can also check the computer number, but from the pic you have, I will have to say it's Speed Density.

 

TenorPlayinGuy

Founding Member

Aug 3, 2001

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Canyon Country, Ca

Nov 22, 2005

#13

• Nov 22, 2005

• #13

HEHE You want to keep your TPS Voltage at .98v's Try this....

1- Unplug you battery and wait 5 minutes as well as disconeect the IAC connector.
2- reconnect the battery only and start the car, Set the idle you want with the set screw.
3- Turn off the car
4- reconnect the IAC and set your TPS Voltage to .98 volts(It may take a few tries but it will work, unless your running VERY rich then you would have to try other things such as replace your O2's and such)

 

Luis911

Member

Nov 9, 2005

114

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17

Mexico City

Nov 23, 2005

#14

• Nov 23, 2005

• #14

91ghp5.0 said:

thats speed density. and is that an 81, or a 91?

Click to expand...

(IN SPANISH)
Factura del mustang:
---------------------------------------------------------------------------------
Mustang Mod. 1981 tipo Fast Back, 2 ptas aut, motor 8 cilindros, capacidad 5 personas, color ebano. Equipado con aire acondicionado, calefacción elevadores y seguros eléctricos.
----------------------------------------------------------------------------------
Y la factura de la conversión a 1990, de Junio de 1991 dice:
-----------------------------------------------------------------------------------
Conversión a Mustang GT 1990 de mustang sedán 2 ptas. mod. 1981 con número de serie: xxxxx (el mismo que la factura)
Conversión exterior:
2 Spoiler's
1 Cofre
2 Calaveras
2 Faros
4 Cuartos
2 Facias

1 Tablero completo
Consola
1 Juego de calaveras
2 Espejos
1 Juego de molduras
1 Transmisión automática *
1 Motor de inyección **
1 Arnes electrico
1 Computadora
1 Juego de forros de asientos

 

Luis911

Member

Nov 9, 2005

114

0

17

Mexico City

Nov 23, 2005

#15

• Nov 23, 2005

• #15

_jb_ said:

Pre 89's were speed density engines, exluding California 88 cars. Another way to check to see if your car is speed density is to see it the BAR/MAP sensor is connected to the intake. It's the black box thing mounted on the firewall right behind the upper intake.

Click to expand...

System MAP only Mustang 86 to 88, then my engine is 1988? (I checked VIN engine and maybe 86 or 88)