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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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  #1  
Old 07-21-2009
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Icon5 Help needed: MAS Swap

hey everyone, new to the forum but have a question. I'm popping in a new Spectre performance intake (looks beautiful) but the MAS (Mass airflow sencer) port on the intake does not fit my 2004 sencer. it will however fit the 03' and earlier sencer (one of many problems associated with ford changing everything at 04'). my sencer has six wires attached, the 03' sencer for the 3.0l only has 4, but the one for the 03' 4.0L has six so my question is: can i hot wire the 03' 4.0L MAS into my 04 3.0L truck? and will it severely mess with my ECU?
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Old 07-21-2009
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Originally Posted by camokid View Post
my sencer has six wires attached, the 03' sencer for the 3.0l only has 4, but the one for the 03' 4.0L has six so my question is: can i hot wire the 03' 4.0L MAS into my 04 3.0L truck?
All 2001~2003 Ranger MAF's are 6 wire, including the 3.0L. The 4-wire Ranger sensors were for 2000-back.


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Originally Posted by camokid View Post
...will it severely mess with my ECU?
Possibly. The PCM uses a calibrated transfer function matched to the factory MAF sensor, MAF housing size/shape, etc. It tells the PCM how the electrical input represents the flowrate for that particular MAF combo.
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Old 07-21-2009
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I have looked into this for the same reason you are, and my conclusion is that the older style sensors used a different voltage range than the new ones, so to swap them out, you would have to build a custom tune for the computer to compensate for the different readable range of the sensor. In short, not worth it for a "cool looking" intake.
Do the airbox mod, and enjoy as much power as the Spectre intake would give you.
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Old 07-21-2009
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Arg!! Well thank you anyway. Why must ford f up a good thing, ugh. I'll just jerry rig the curent mas to fit. What if I just try it any way, what would happen? And why wouldn't the o2 sencor and it's closed-loop data system calibrate the open-loop sytem of the mas?
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Old 07-21-2009
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Originally Posted by camokid View Post
Why must ford f up a good thing, ugh.
If you want an aftermarket intake, why not get one for the correct year?


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Originally Posted by camokid View Post
And why wouldn't the o2 sencor and it's closed-loop data system calibrate the open-loop sytem of the mas?
The O2 sensors will correct closed loop to stoichiometric within the limits of the clips. If the compensation goes beyond a clip, it will light the CEL.

The bigger problem could be in open loop where the PCM relies on the MAF and ignores the O2's. Yes, there is an Open Loop Fuel Multiplier based on the closed loop correction but there is nothing to say that one MAF transfer function has the same curve shape as another MAF transfer function. Using the wrong transfer function can cause the mixture to go too rich or too lean in open loop in spite of the multiplier.
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Old 07-22-2009
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Is there a way to change the transfer function without buying some $1200 super programer?
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Old 07-22-2009
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It should be possible using a $600~750 software and flasher package like the SCT Pro Racer or Delta Force Commando.
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Old 07-22-2009
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i'll keep that in mind. i don't have that kind of money at the moment, haha. for now ill just build a bracket to fit the current MAS (i've done weird custom fit jobs before). thank you for the knowledgeable advise.
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Old 07-22-2009
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why not go to a junk yard and pick up a pre 2004 Maf housing and use that??? use that to connect to the open element air filter and your sensor will just drop in. I was going to do that but I have an X-cal2 and went through Doug at stuffforyourranger and picked up his maf adapter.... that will fix everything, no need to reprogram and they are really cheap... yes the 04+ intakes really suck because of the molded in housing, Ive had to deal with it a few years ago.
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Old 07-22-2009
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Just buy a real intake or don't do it at all. You won't gain much if any power on an intake alone. Not worth the effort to me.
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Old 07-22-2009
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Quote:
Originally Posted by Johnbaum13 View Post
I have looked into this for the same reason you are, and my conclusion is that the older style sensors used a different voltage range than the new ones, so to swap them out, you would have to build a custom tune for the computer to compensate for the different readable range of the sensor. In short, not worth it for a "cool looking" intake.
Do the airbox mod, and enjoy as much power as the Spectre intake would give you.
he just said the voltage ranges are different and will mess things up in the end.
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  #12  
Old 07-22-2009
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and i just dropped $80 into the intake, its going the F--- in!
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Old 07-22-2009
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Originally Posted by camokid View Post
and i just dropped $80 into the intake, its going the F--- in!
You don't have a receipt? Get your money back. With less than that $80 I you could have gained the same power from doing a tune up, cleaning your throttle body and changing out the fuel filter. At the same time you are doing maintenance too.

Last edited by whippersnapper02; 07-22-2009 at 10:54 AM.
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Old 07-22-2009
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its going in, end of story.
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Old 07-22-2009
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Is this a pre-designed intake or Spectre's Build-Your-Own series?

I am currently in the middle of building an intake for my 94 with their Build-Your-Own components. However what turned up was their 4" aluminum tubing series, no matter because I already had a 4" K&N conical filter.

In their Build-Your-Own series, they use MAF adapter plates (They also have a MAF adapter tube, but it is complete garbage). They have two universal ones that most parts stores carry in stock, but they usually require drilling to fit the smaller Ford MAF. They also sell specific Ford small MAF and Ford large MAF adapter plates in their 3" and 4" intake series.

I'll have all the components for my intake done by Friday, I'll post pics to help you if needed.
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Old 07-22-2009
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Quote:
Originally Posted by camokid View Post
its going in, end of story.
I like your style. Dont take bullshi t from people up here.
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Old 07-22-2009
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here's a solution but it comes with a $100 price tag. It does accept your sensor and should install into your spectre system. If you don't want to retune then a sleeve would have to be made and inserted to bring the interior diameter down to near stock size.

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Old 07-22-2009
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Quote:
Originally Posted by camokid View Post
its going in, end of story.
Just trying to save you a few bucks.

See you in a few threads when you can't figure out why your truck is running like crap. End of story.
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  #19  
Old 07-22-2009
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Quote:
Originally Posted by graniteguy View Post
here's a solution but it comes with a $100 price tag. It does accept your sensor and should install into your spectre system. If you don't want to retune then a sleeve would have to be made and inserted to bring the interior diameter down to near stock size.

Or $20:

Spectre Industries 8145 - Spectre Performance Mass Airflow Sensor Filter Adapters – SummitRacing.com

Bolts directly to the MAF housing, no retuning necessary.
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Old 07-22-2009
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Originally Posted by 84FordMan View Post
That is for the old style MAF sensors like on my 03.



The end of story kid has an 04 with a cartridge style MAF.

Last edited by whippersnapper02; 07-22-2009 at 12:32 PM.
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Old 07-22-2009
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Originally Posted by whippersnapper02 View Post
See you in a few threads when you can't figure out why your truck is running like crap. End of story.
ok, don't even talk mr. "i have a 4 0". if i was lucky enough to have that engine i would have thrown in the K&N 77 series intake. secondly, i already fixed the problem by very skillfully built an adapter plate for the universal piece on the "build your own" intake which fits air tight, is squared off, and is level in the tube. and thirdly you will never here from me having engine problems.

p.s. don't call me "end of story kid"
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Old 07-22-2009
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Quote:
Originally Posted by camokid View Post
ok, don't even talk mr. "i have a 4 0". if i was lucky enough to have that engine i would have thrown in the K&N 77 series intake. secondly, i already fixed the problem by very skillfully built an adapter plate for the universal piece on the "build your own" intake which fits air tight, is squared off, and is level in the tube. and thirdly you will never here from me having engine problems.

p.s. don't call me "end of story kid"
You think I like my engine? Sorry but I don't. Its a turd. "Mr. I have a 4.0?" I'm Mr. "I wish I never bought this stupid truck."

They do make an intake for your truck. You said 04 3.0 right? K&N does make it. Did you look? Its a POS intake anyway. I don't run it anymore because all it did was suck in hot air. That's why I was trying to tell you to return the crap you bought because you will gain little to no power but no its going in end of story. Don't listen to the guy that has done this before.
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  #23  
Old 07-22-2009
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the one i wanted was the 77 series which was cromed aluminum, and nice. they don't make anything worth wile for my truck. also my spectre is set up with a ducting piece to get forced cold air induction from below the truck so hot air is not an issue.
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Old 07-22-2009
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lol
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Old 07-22-2009
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Well again any intake alone isn't worth it on a stock truck. If you had headers, exhaust, and you were going to tune it all then I'd say go for it.

Volant makes an intake for you truck but its not chrome. Too bad you want chrome so bad.
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