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The manifold absolute pressure sensor (MAP sensor) is one of the sensors used in an internal combustion engine's electronic control system. Engines that use a MAP sensor are typically fuel injected. The manifold absolute pressure sensor provides instantaneous manifold pressure information to the engine's electronic control unit (ECU).
The MAP sensor measures pressure in the engine's inlet manifold. When coupled with data regarding the engine's revolutions per minute, or RPM, and a table of volumetric efficiency over the operating range of the engine, the MAP sensor can be used by the engine management computer to calculate fuel requirements.
the relays are fine, I can hear and feel them click. all of the fuses are good under the dash. ive checked the ignition mod, its good. my next step is the map sensor unless you all tell me diffrnt. if that's good, im going to the pumps. I know the map sensor controls fuel, but again, I cant hear the pumps. both tanks are 1/4 full. HELP!!!!! brian.
Delco ECU used in General Motors vehicles built in 1996. An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine.
The Simple Sensor Interface (SSI) protocol is a simple communications protocol designed for data transfer between computers or user terminals and smart sensors. The SSI protocol has been developed jointly by Nokia , Vaisala , Suunto , Ionific, Mermit and University of Oulu .
Coded panels were the earliest type of central fire alarm control, and were made during the 1800s to the 1970s. A coded panel is similar in many ways to a modern conventional panel (described below), except each zone was connected to its own code wheel, which, depending on the way the panel was set up, would either do sets of four rounds of code until the initiating pull station was reset ...
This signal conditioning may include amplification, filtering, sensor excitation, and input configuration. Another consideration is the frequency range of the instrumentation. It should be large enough to cover the frequency range of signal interest, taking into account the range of the sensor.
It gets active shortly after a reset which triggers a self-learning process. A reset needs to be initiated by the driver when the tires have been changed or the pressure adjusted. TPI does not require any in-wheel pressure sensors and RF (radio frequency) components. The Audi TT series was the first to be equipped with TPI, in 2006.