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Discussion Starter #1
Hi, does anybody know if a 2004 MACH1 has a MAP sensor?
If so, where could I find it? (location under hood)
If not, what is used to mesure the Air/Fuel ratio?

I went to TREE garages so far, non of them could
tell me if it is suposed to have one or not, nor could they
locate anything under my hood that 'might be' the MAP
sensor.
 

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Are you talking MAF (Mass Airflow Sensor)? Should be between the airbox and throttle body.

Welcome aboard!
 

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Discussion Starter #3
No, the MAP. (Manifold Absolute Pressure)
See, I dont know squat about cars, I wont say
right/wrong to anyone, I'm just trying to dial
down my fuel air ration by putting
a potentiometer in serie with the variable signal comming
from the MAP, if there is non, it will indeed have to be the
MAF but this sends back a pulsed signal wich I can not just
dial down the ratios with a simple self/homemade thingy...

thanks.
 

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No, the MAP. (Manifold Absolute Pressure)
See, I dont know squat about cars, I wont say
right/wrong to anyone, I'm just trying to dial
down my fuel air ration by putting
a potentiometer in serie with the variable signal comming
from the MAP, if there is non, it will indeed have to be the
MAF but this sends back a pulsed signal wich I can not just
dial down the ratios with a simple self/homemade thingy...

thanks.
Sorry about that... Hopefully one of the 4.6 guys will chime in later today.
 

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Snipe Hunt

The 99-04 Mustangs don't have MAP's - the MAF system replaced that.
 
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The 99-04 Mustangs don't have MAP's - the MAF system replaced that.

actually it's 1996 up on all the n/a Modulars;)
however the 03/04 Cobra does have one, maybe thats where the other shops we're confused:scratchchin since both are DOHC's........now what measures the a/f ratio is the O2 sensors, what kind of problem are you having:headscratch:
 

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actually it's 1996 up on all the n/a Modulars;)
however the 03/04 Cobra does have one, maybe thats where the other shops we're confused:scratchchin since both are DOHC's........now what measures the a/f ratio is the O2 sensors, what kind of problem are you having:headscratch:
That's right. The 95 Cobra R had the MAF (80mm) too.

I think he's looking for a way to monitor the O2 sensors too, lets see if we are right...
 

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Discussion Starter #8
Well, thanks for all the info so far...
What I am trying to do here is this.
I saw this website online www.water4gas.com
What you do is build a small device to produce
hydrogen on demand and have it sucked in with the
air intake, this is suposed to UP your milage dramatically
(between 20% and 50%) Not much but for the mpg's
we get in Stangs, but would be a great step...

The engine will sence more oxigen so it will
react by injecting more fuel as well. (cars are designed
to waste gas even if you ad savers on the engine)
What I want to do is make the computer believe
that the air fuel mixture is still the same, but have a
potentiometer somwhere installed in serie with the
right wire that comes from whatever decides the air/fuel
mixture so I can adjust up to a greater economy.
Does anyone have the schematics for the MAF sensor
in the MACH1 2004? (what is the function of each wire)
I gotta do the same with the 4 oxigen sensors in the exhaust
as well.

What do you guys think of the hydrogen with the air
idea? Would this work? All you inject is realy
Combusteble Air...
 

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Discussion Starter #9
What I'm trying to achive here is: ADDING HYDROGEN.
(because this is a flamable gas) LEAN the A/F MIXTURE
 
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sounds a little like ******** to-me and I'm not sure I'd want to experiment wth that on my $30k Mach 1, try it out on some pos 1st....
 

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More Research

Do more research on the company and the product. Google them and see what OTHER customers are saying on the forums about them. I would not trust whatever claims are being made by the seller.

As for the idea, this is a VERY old concept (I used to read ads about machines and carbs that would do this when I was a little kid 50 years ago). Its also something I put in the category of "if it was that easy and it worked everyone would already be doing it".

But keep us up to date. I'd re-check the idea that the car will automatically sense the presence of more oxygen and supply more fuel - the air/fuel map built into the tune will fight that, and you will need to spend a lot of effort getting the computer to cooperate with you.

As with any attempt to extract more of anything from these motors, the TUNE is all-important.

IDEA: You might contact Innovate (makers of Wideband O2 rigs and tuners) and talk with their tech support about your idea and how their products might help you.
 
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