"Lawson[rem0ve]news" > wrote in
news:SmZAe.103458$gc6.75345@okepread04:

> I know you are correct as I was wondering if something had become
> disconnected when I found the open connection. I checked the mustang
> book that said it was a vent. You have backed up that idea. thanks.
>
> Musttanguy wrote:
>
>>They all use a MAP sensor, the earlier is connected by hose to intake
>>while the later is vented to the atmosphere
>>
>>
>>
>

Let's make this perfectly clear:

The Speed Density engines DONT have a MAF and use the term MAP for manifold
pressure and they have a tube to a vacuum port.

The MAF configurations use the same part, but called BAP without a tube and
it measures atmospheric pressure.