map sensor question

[andi m]

hi im trying to find out the values for a map sensor that i have setup for barometric comp on a m4

its from a 1.4 renault clio . a standard gm bosch type numbers on it are 876 2288

thanks andi



i

[RossB]

This should be the same as our 1 Bar MAP sensor (100 in the M4 sensor calibrationo selection).

[andi m]

tryed that setting and that one does not work , would figure that it would as its a 1 bar map

it comes up with a fault code as the output at 100kpa is 4.8v

[RossB]

Is the sensor reporting an error at 4.8 Volts? This is the correct voltage for 100 kpa on a 1 bar sensor. The sensor should not go in to error at this voltage.

[andi m]

yes it reports a error at that voltage ,i tryed 3 different map sensors that i have as spairs and they all do it,

[RossB]

What version of M4 software are you using? If you select "100" as your MAP sensor calibration it should not report an error at all at that end of the scale, it will only report an error below 0.1V. If you are using a custom calibration you will see an error at 4.8V.