MAF OR MAP
19 October 2003, 11:42 PM
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...or to explain it a bit, the MAF sensor measures the volume of air flowing through the induction tract into the engine.
The MAP sensor measures the pressure of the air inside the inlet manifold - in other words, after it's been through the turbocharger and intercooler.
The MAP sensor measures the pressure of the air inside the inlet manifold - in other words, after it's been through the turbocharger and intercooler.
19 October 2003, 11:44 PM
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Equally correct. Just depends whose terminology you favour. Most sensor manufacturers assume absolute pressure unless otherwise stated, thus:
TMAP = temperature & manifold air/absolute pressure.
DTMAP = temperature & differential air pressure.
TMAP = temperature & manifold air/absolute pressure.
DTMAP = temperature & differential air pressure.
20 October 2003, 06:55 AM
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i have read on here that people who" scoobys are holding back have changed the maf sensor. i have changed the map sensor(i think) now want to change the maf sensor where abouts is it
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20 October 2003, 04:02 PM
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The MAF sensor is inside the induction pipe immediately after the airbox. Depending on the model year, the base and connections for it will either be on top of the induction pipe (most cars) or at the back of it (99/00/STi5/STi6).
However, before you rush into changing it, the most common symptoms of a failing MAF sensor are uneven idle, and, paradoxically, better acceleration. If the car is stuttering/holding back, there are other, potentially more likely explanations.
What model year is your car BTW?
However, before you rush into changing it, the most common symptoms of a failing MAF sensor are uneven idle, and, paradoxically, better acceleration. If the car is stuttering/holding back, there are other, potentially more likely explanations.
What model year is your car BTW?
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