what is a diffrence the map sencor & a maf sencor,?

Answer 1

MAF is Mass Air Flow. MAP is Manifold Absolute Pressure. The mass air flow sensor sees how much air is flowing into an engine by use of a hot wire or hot film. The air flowing over the sensor changes the resistance/current flow and the computer can sense how much air is flowing that way. The MAP sensor uses a variable resistor to monitor the difference in pressure between the intake manifold and the outside atmosphere. The computer uses these and other sensors to adjust timing, mixture, spark and throttle to make the engine run at its best and most efficient.

Answer 2

The Manifold Apsolute Pressure (MAP) sensor senses intake maniflold pressure and the Mass Air Flow (MAF) senses the flow of air coming from your air cleaner and going to the intake manifold. The MAF uses a heated sensor element. Some cars use a "speed density" system in conjunction with the MAP sensor rather than a MAF sensor and have no MAF sensor. MAF sensors can be cleaned to help improve engine performance (see link below).

Answer 3

#1 Manifold air pressure and #2 Mass air flow sensor. Some cars have both. #1 measures vacuum or air pressure in the intake manifold. #2 measures air entering the engine. MASS sensors most the time are between the throttle chamber and air filter. Map sensors can be small and located almost anywhere. 300zx Nissan calls the MAP "Boost sensor" and uses both sensors to caluculate fuel metering.

Answer 4

the spelling