So when I joined this forum, I was involved in a lot of conversations regarding whether this car used the MAF sensor or MAP sensor. Everyone gave me a bunch of grief when I suggested this car used a MAF sensor to determine fuel calculations.
So I get the list of items from Mountune that they want me to record, and I noticed something very interesting on the list.
One of the items says Airflow Mass lbs/min The calculated airflow through the engine and is used for almost all flow based tables.
Another item is the MAP or Manifold Absolute Pressure - Manifold absolute Pressure. This is post throttle.
It was further discovered that the US based Fiesta ST's are using MAS for fuel calibrations and the UK versions are using MAP sensors for Fuel tuning calibrations.
Now Im just saying, this looks an aweful lot like a MAF based tune and not a MAP based tune.
So I get the list of items from Mountune that they want me to record, and I noticed something very interesting on the list.
One of the items says Airflow Mass lbs/min The calculated airflow through the engine and is used for almost all flow based tables.
Another item is the MAP or Manifold Absolute Pressure - Manifold absolute Pressure. This is post throttle.
It was further discovered that the US based Fiesta ST's are using MAS for fuel calibrations and the UK versions are using MAP sensors for Fuel tuning calibrations.
Now Im just saying, this looks an aweful lot like a MAF based tune and not a MAP based tune.