cant find a mass air flow sensor on my truck

[ncsdaonex]

i have a 1990 ranger and it has a mass air flow sensor but my 89 doesnt, it just has two little hoses going into the air cleaner housing, so how will it work with a turbo, if it wont work i has going to make it carburated with a holley carb, so would it work with a holley carb and how does it work with now mass air flow sensor?

 

[rangerbum]

It's gotta have one, just has to. It hasnt already been carbureted has it? I just dont see a Fuel injected engine running and driving without a maf

 

[fastpakr]

Lots of fuel injected vehicles don't use MAF sensors. I don't know about an '89, somebody else can jump in to answer it. Regardless, it's very possible. As an example, all 2.9's except the '90 CA models were MAP based.

 

[mikepotts]

speed density system = no mass air meter. similar to 5.0 mustang from 86-88.

 

[turbo cat]

what he said

 

[Ranger44]

It's on your lower intake manifold, the MAP/BARO.

 

[tomw]

The turbo T-birds with the 2.3 had a MAP sensor that was used to measure pressure inside the intake manifold. Most non-turbo MAP sensors measure vacuum inside the manifold, and use that as a signal to the ECM to tell it how much load is on the engine, and adjust the mixture leaner if leisurely and richer if the vacuum is low (pedal to the metal). If it breaks, you will likely have a very poor idle, flopping around like a fish out of water.
I beleive you could pull the vacuum line from the MAP sensor, and it would let the turbo crank up some high pressures. It may have been the vacuum line on the turbo dump valve, as this was from the 1980's I am trying to remember.
tom

 

[shadetree]

i have a 1990 ranger and it has a mass air flow sensor but my 89 doesnt, it just has two little hoses going into the air cleaner housing, so how will it work with a turbo, if it wont work i has going to make it carburated with a holley carb, so would it work with a holley carb and how does it work with now mass air flow sensor?

Your 90 must be a California model, or a 4.0 engine, as MAFs didn't become standard fare until 1991.

It is a speed density system, and if you use the computer from a turbo t-bird, it will work with few changes. You can also use a tuner of some sort. I would never recommend going back to carburetion from EFI.shady