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-   -   which wires which (https://www.scoobynet.com/scoobynet-general-1/959103-which-wires-which.html)

madscoob 14 December 2012 10:14 PM

which wires which
 
later 2bar map sensor.
does anyone know from left to right which wires which please :notworthy

JTinnovations 14 December 2012 10:37 PM

Give me a model-year and I'll try and dig out the info :)

madscoob 14 December 2012 10:41 PM

thnks should have posted up have found it now
MY92-96 MAP sensor Wiring

Red = +12V
White = Sensor
Green = Gnd

MY97-00 MAP sensor

Looking at connector with pressure pipe facing down

Left = +12v
Center = Signal
Right = Gnd

Pin Numbers Wire colours:

1 = Blue
2 = Yellow-Black
3 = Red

JTinnovations 14 December 2012 10:43 PM

Cool - glad you found it ok :)

madscoob 14 December 2012 10:47 PM

cheers , hopefull all probs solved now, 02 was firked and was running silly rich, but keep killing map sensors but now know that 16.6psi is 1.15bar so i was demanding to much from the 93 1bar map sensor, does that sound right

JTinnovations 14 December 2012 10:53 PM

I'm surprised that a 2 bar MAP sensor was killed by such a small amount over...usually they are rated to at least 50% over-pressure. But I don't have specific experience of this so it could be the case.

More likely that a sensor is killed by dodgy wiring, in my experience.

madscoob 14 December 2012 10:59 PM

might be wrong but i was told the pre 95 map sensor is +1bar -1bar so 1.15 over was killing them, anyhows the after market 3bar is coming off for peace of mind as 5volts devided by 2bar = 2.5volts per bar and 5volts devided by 3.0bar = 1.666 volts per bar so i figured the voltages are wrong anyhows

JTinnovations 14 December 2012 11:08 PM

You can't change a MAP sensor for a different range unless the ecu is remapped to suit.

To be pedantic, a MAP sensor measures absolute pressure (MAP=Manifold Absolute Pressure) - so 1 bar of boost is 2 bar absolute since atmospheric pressure is 1 bar.

So 1.15 bar boost is 2.15 bar absolute, which is just a few percent over range for a 2 bar sensor: which would not kill it IMHO.


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