the maf on my 87 T2 went out, a new one from Mazda's like 1200$. would it be better to just go with a stand alone system and convert to a map? The car's stock right now, actually just picked it up recently so this is a real bummer for me...good thing its not my DD...have plans to modify it in the future, ill prob end up shooting for right around 350 RWHP...so what do you guys think?

 

You ould get a megasquirt for less than $500.

 

whats a megasquirt? sounds sorta dirty
is that a replacement maf?

 

or just pick up a used maf for cheap and get it running.

 

if u have the money go stand alone. i dont think youd fair well with megasquirt. try haltech.

if you dont have the money goto the parts for sale section.

 

We don't have MAFs (Mass Air Flow Sensors), we have AFMs (Air Flow Meter). Two different animals.

Make sure you look for a AFM with the same N number if you decided to go with a good used one. Used ones are fine BTE. You don't need to buy a new one or a standalone.

Megasquirt is a DIY standalone ECU that you build from the ground up. Check out the Megasquirt Sub-forum

 

If you don't want to spend much money, just pick up a used AFM from somebody who replaced theirs with a standalone EMS. Otherwise, a standalone EMS is an excellent idea just as long as you have a professional tune it. The EMS brand doesn't matter as long as the tuner can make the engine run to your liking.

They are the same type of animal actually, but I don't think that very many people on this forum have the background to know that. The vane AFM and hot wire MAF sensor are both types of MAF sensors. The hot wire (or cold wire) MAF sensor is normally just called a "MAF sensor", so that is why most people think that an AFM is not a MAF sensor. It is similar to how a turbosupercharger is normally just called a turbocharger or turbo, and therefore most people do not realize that it is actually a type of supercharger.

 

Actually they are slightly different animals. AFMs calculate airflow, they send a completly different voltage reading to the ECU then MAFs. The ECU then uses the AFM IAT and the flapper to calcualte the Air Mass flowing into the engine.

MAFs calculate air mass, not airflow.

They do pretty much the same thing in a since that they help calculate how much air is entering the engine.

I don't know about the whole turbo and supercharger thing, I have never seen a supercharger called a turbo or a turbo called a supercharger.

 

Go you have proof to back up such claims?

BTW, to the OP, how do you know it "went out"?
Did you drop it or something?
Those things almost never fail unless you **** with it.


-Ted

 

Who really cares wat the actual designation is, its a 20 year old piece of crap that meters air flow. afm/maf, whatever.

 

actually, im buying this car from a guy up the road, it hasn't ran or been registered since 99. the current owner told me that it went bad, and thats why he parked it since he couldnt find a used one (prob never looked) and a new one is very expensive.

and as far as the MAF vs AFM i didnt know that the T2 used a vane since the majority of Japanese cars used a MAF...but they do basically the same thing anyways, but thanx for pointing it out to me...maby when i go to pick it up this weekend ill be able to see if its just dirty, but i mean, the guy has no reason to lie that its out

 

Fixed your spelling.

See the Training Manual and Also, here

Infact I will correct my self and saying AFM measure air volume instead of airflow not air mass
A lot of previous owners also "think" they know the problem when they don't. I would first look at the factory service manual here to test the AFM

 

... and you don't know about the EMS thing either, lol. That's OK though, it's higher level engineering stuff that most non-geeks don't car about. However, it would be nice if you guys would at least research the issue a little bit before trying to argue the point against a professional industry analyst. Most basic EMS books will cover this subject.

OK, I do agree that the best place for the stock AFM and ECU is in the trash, but not everybody wants to spend the money to do this. Also, it is a little bit frustrating when internet forums ruin a lexicon that many of us spent a lot of time learning.

 

Actually I do know about EMS and also know about the AFM and MAF. They both eventaully help to come out with the same answer which would be Air Mass. How they do it and how the ECU calculates is completly different.

 

Wow, weird I didn't see this...

A turbocharger CAN be called a "supercharger".

Not the other way around...

"A square is a rectangle, but a rectangle is not a square..."


-Ted

 

Turbo supercharger as used on P-38's in WWII. Turned a DOG of an airplane into something useful. http://www.nasm.si.edu/research/aero...ckheed_p38.htm

The article is wrong. It was not the most successful twin engine fighter in WWII.