byoungblood

There is definitely no MAF on my 2012. Just an IAT right after the air cleaner, and the aforementioned boost/charge air temp right before the throttle body, and the MAP on the intake manifold itself.

Generally a MAF is more flexible. Older FI vehicles that used a MAP/IAT to calculate the amount of air entering the engine based on manifold pressure, temperature, displacement, and volumetric efficiency. Modifying the engine in such a way that affected the last two values would of course throw off the computer and simple things such as a cam swap would require a retune. With a MAF, you were only limited to the flow rate of the injectors and how much the sensor itself could flow.

As to which system is better for a forced induction application? That is a fairly complex discussion itself.

Slabo

I have been lurking a while but since I use the online parts catalog a lot I though I would post up. Looking at the catalog the 2011 has a MAF sensor built into the air box. For 2012 the MAF sensor is replaced with a MAP sensor in the same location. I assume both have IAT sensors build into them. Both the 2011 (if built after 1/3/2011) and the 2012 have 2 additional MAP sensors. 1 on the intake tube after the air charge cooler and 1 on the manifold. Both also have a temp sensor on the intake manifold.

BTW these are listed in the catalog as Emission Control Sensors.

2011 MAF


2012 MAP


2011-12 MAP sensor on intake tube


2011-12 MAP sensor on intake manifold


2011-12 intake manifold temp sensor

taylori

FROM PTS (for those who do not know this is ford's technical website, used by techs for info and tsbs, etc) for 2011 the ecoboost has a:
The electronic engine controls consist of the following:

• Camshaft Position (CMP) Sensor
• Catalyst Monitor Sensor (CMS)
• Crankshaft Position (CKP) Sensor
• Cylinder Head Temperature (CHT) Sensor
• Fuel Rail Pressure (FRP) Sensor — 3.5L Gasoline Turbocharged Direct Injection (GTDI)
• Heated Oxygen Sensor (HO2S)
• Intake Air Temperature (IAT) Sensor — 3.5L GTDI
• Knock Sensor (KS)
• Manifold Absolute Pressure (MAP) /Intake Air Temperature 2 (IAT2) Sensor — 3.5L GTDI
• Mass Air Flow (MAF) Sensor — 3.7L, 5.0L (4V) and 6.2L (2V)
• PCM
• Turbocharger Boost Pressure (TCBP) /Charge Air Cooler (CAC) Sensor — 3.5L GTDI
• Variable Camshaft Timing (VCT) Oil Control Valve — 3.5L GTDI and 3.7L
• VCT Variable Force Solenoid — 5.0L (4V) and 6.2L (2V)

FOR 2012 the f150 has:

The electronic engine controls consist of the following:

• Camshaft Position (CMP) Sensor
• Catalyst Monitor Sensor (CMS)
• Crankshaft Position (CKP) Sensor
• Cylinder Head Temperature (CHT) Sensor
• Fuel Rail Pressure (FRP) Sensor — 3.5L Gasoline Turbocharged Direct Injection (GTDI)
• Heated Oxygen Sensor (HO2S)
• Intake Air Temperature (IAT) Sensor — 3.5L GTDI
• Knock Sensor (KS)
• Manifold Absolute Pressure (MAP) /Intake Air Temperature 2 (IAT2) Sensor — 3.5L GTDI
• Mass Air Flow (MAF) Sensor — 3.7L, 5.0L (4V) and 6.2L (2V)
• PCM
• Turbocharger Boost Pressure (TCBP) /Charge Air Cooler (CAC) Sensor — 3.5L GTDI
• Variable Camshaft Timing (VCT) Oil Control Valve — 3.5L GTDI and 3.7L
• VCT Variable Force Solenoid — 5.0L (4V) and 6.2L (2V)

that's from ford, take it or leave it.

Slabo

The new AFE Power intake for the 2012 EB says this:

"Manifold Air Pressure Sensor – In 2012 Ford began using a Manifold Air Pressure (MAP) sensor instead of a Mass Air Flow Sensor (MAF). This intake is designed specifically to be used with the factory MAP sensor. "

http://afepower.com/shop/details_new...rtno=54-12111&

DieselDawg

notice the 3.5L is not listed with the MAF in either year. nothing was changed from 2011 to 2012

killerrudy

I had already posted this reference up.

Slabo

I see now that you did. Missed it.

Slabo

taylori post is not correct. The 2011 EB has a MAF and the 2012 changed to a MAP in the same location. Here is a picture of my MAF on my 2011 EB. Note the part number.

gimmie11s

Wiki may not be the end all but what i quoted applies and is true. I went for the quick and easy and in that case it was accurate.

But i agree....... at the end of the day........ not a big deal anyway.

sholland96

Either MAF or MAP will give useful information, but what really makes a difference is the wideband O2 sensor... The wideband allows closed-loop control at all times (I hope the Ford ECU is doing this!!), even WOT, and is the ultimate way of maintaining correct AFR.

I would love to put an AFR meter on this thing to see what the computer is really doing in all load conditions...