MAP readings?
08-07-2009, 09:04 AM
#1
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MAP readings?
Can anyone please help me finding out weather my 3 bar MAP sensor is broken or not?
I did some measuring on it:
With ECU connected and ignition on, I measured between pin 11 and pin 15 only 1,65V (according to the manual it should be 1,80V to 2,2V)
- Is this too low? Anyone had experience with this?
I also measured between earth and signal terminal on the MAP sensor and I got the same 1,65V.
I also measured the wires from pin 11 to earth wire (in the middle) to the MAP sensor = 0,01 Ohm.
And from pin 15 I measured 0,01 Ohm to the Signal wire for the MAP sensor.
So I assume the wires are okay.
The problem is the engine is getting to much fuel and if this reading is below the tolerance I will have to buy a new MAP sensor ASAP!!
Thanks!
I did some measuring on it:
With ECU connected and ignition on, I measured between pin 11 and pin 15 only 1,65V (according to the manual it should be 1,80V to 2,2V)
- Is this too low? Anyone had experience with this?
I also measured between earth and signal terminal on the MAP sensor and I got the same 1,65V.
I also measured the wires from pin 11 to earth wire (in the middle) to the MAP sensor = 0,01 Ohm.
And from pin 15 I measured 0,01 Ohm to the Signal wire for the MAP sensor.
So I assume the wires are okay.
The problem is the engine is getting to much fuel and if this reading is below the tolerance I will have to buy a new MAP sensor ASAP!!
Thanks!
08-07-2009, 06:17 PM
#2
I've found that life I needed.. It's HERE!!
According to this website the pressure is o.k.: http://www.bigturbo.co.uk/main4.htm
I find it to be a little bit high, it is definitely NOT too low.
A 2-bar sensor produces about 2.2 Volt at atmospheric pressure
A 2.5-bar sensor gives about 1.8 volt
A 3-bar sensor gives about 1.55 volt.
Also see: https://passionford.com/forum/techni...p-sensors.html
or: http://forzavx.com/gecu/hw/APS02-03_APS05-01.pdf
I find it to be a little bit high, it is definitely NOT too low.
A 2-bar sensor produces about 2.2 Volt at atmospheric pressure
A 2.5-bar sensor gives about 1.8 volt
A 3-bar sensor gives about 1.55 volt.
Also see: https://passionford.com/forum/techni...p-sensors.html
or: http://forzavx.com/gecu/hw/APS02-03_APS05-01.pdf
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