4 Bar Map Sensor Voltage Chart

P pressure in kpa 4 bar 400 kpa voltage out signal 5 x 0012858 x p 04 example.

4 bar map sensor voltage chart. The pressure inside the intake manifold is an extremely important input to the ecu. I called bwr and they gave me the scailing chart for the 4 bar sensor. Linear output based in this info chart shown is for a 2 bar scaling to 29 4 psi. Several different versions are available for normally aspirated and engines with blowers.

The part is ac delco 12592525. Download map sensor measurement. The custom injection molded body features the oem style connection for a quick and clean installation. This sensor will respond to changes in manifold pressures and relay the information to the ecu in the form of a voltage signal ranging from about 1 volt to 5 volts.

Lab scope measurement of map sensor. The information the map sensor tells the ecu is applied to tables set to deliver the proper ipw injector pulse width and ignition timing. It is possible that detroit is slightly above sea level and you can use 12 11 in the formula for 1 mile above sea level. This signal voltage corresponds to the pressure in the inlet manifold.

Channel 1 red in figure 3 shows the map sensor signal. Initially the engine is not yet running and the signal level is around 4 5 v. It s a bosch 0261230042 used in the redline saturn cars. Applications up to 30 lbs.

Apparently it s a gm cheverolet performance 3 bar sensor which should have an approx. Formula for the gm 3 bar map sensor is v 8 94 14 53 i have no idea why it s 14 53 and not 14 696 rounds up to 14 7 but it works out on gm s chart every time. Below is the chart for my 2 5 bar map sensor. Now at a slightly higher elevation reading flickers between 1 78 and 1 79v giving a reading of 0 9 psig engine load with the car off.

No adapter wiring harness needed. I installed a tvs supercharger on my trail blazer ss a few years ago and never got my tune right and i suspect part of the reason is because i ve never had the map sensor setup correctly. Introducing the first plug n play 3 5 bar map sensor designed for the mzr disi. The way the chart reads to me is the range is 20 250 kpa.

A manifold absolute pressure map sensor lets the ecu know how much pressure is in the intake manifold at any given time. With a maximum accurate pressure reading to 35psi the corksport 3 5 bar map sensor will keep you covered from k04 to big turbo. Map sensor voltage vs pressure. Atmosphere equals 1 bar or 100 kpa 5 x 0012858 x 100 04 843 volts 1 bar or 100 kpa omnipower map sensor voltage vs pressure data.