This blog, in addition to the usual maintenance details for classic mini cars, an attempt is made to explain the "whys" and "wherefores" of the various jobs.

Wednesday, 14 April 2010

Vacuum system : The Basics

First of all, we want function of the hoses in connection with the gasoline case to clarify the answer to, to what the junk ever need.
The SPI (Single Point Injection) has, like all current electronic fuel injection systems a MAP sensor. MAP stands for Manifold Absolute Pressure, ie, here is the pressure measured in the intake manifold. Why? This sensor gives the controller information about the current load of the engine, thus allowing among other things, the correct calculation of the appropriate ignition timing, the different load ranges vary lie down in need.

Since this is an Alpha-N system is at (racing friends will now sensitive) , is calculated as the injection quantity and injection from the position of the throttle, the engine speed and intake air temperature.

The MAP sensor is located in SPI-Minis directly in the ECU, because the very nature of the fuel injection (TBI: Throttle Body Injection = port fuel injection) is not possible to accommodate him directly in the intake manifold. when the throttle valve fuel injected centrally SPI is as before, petrol would come in contact with the sensor (petrol vapor, condensed fuel) and are destroyed, etc.. For this reason, he sits outside and is a vacuum tube system with measurable power from. But because the hoses still drops way in sensor could go towards gas, gasoline case, the interposed. it collects in the gas, the short vacuum hose from the intake manifold can get her through the.

I sometimes got NEN experimental setup done on the desktop, just as conveniently all hoses including case there are new. We therefore assume that control of the experimental Minis PalmPowered is that a radiator intake manifold and the air intake tube has a infrared remote control is one of mime.