Microtech PLX M-300 Dataloggin?
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PLX M-300 Dataloggin?
Hey guys is there anyway this will work? i konw it has a narrowband wire coming out of it. Can i just conect that to the microtech adnnd datalog like that? I tried this but microtech only says 11.0afr adn not chanign at all. Do i need soem resistors or soemthing?
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i tried that i hooked the grey wire from the m-300 to the black/red wire to microtech and all i get ia 11.0afr. it never moves.
is there anyway for it to read acuratly?
is there anyway for it to read acuratly?
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I ordered my M-300 yesterday, so I've been doing some searching on the subject and found this.
Some guy named "Rotarymagic" over at the PLX Forum, I did'nt post the entire thread cause it was hijacket.
To log the wideband signal where your interface only expects 0-1V, you will need to build a simple voltage divider circuit. This will divide the 0-5V output from the white wire to 0-1V. It will be an analog divide by 5 circuit.
Here's how.
1) Purchase 1k ohm 1% 1/4 watt resistor
2) Purchase 4k ohm 1% 1/4 watt resistor
3) Connect them in series (back to back where one leg of the 1k is connected to the one leg of the 4k)
4) Connect the unconnected end of the 4k resistor to the wideband output on the M-Series (white wire)
5) Connect the unconnected end of the 1k resistor to your chassis ground
6) In the junction where your 1k and 4k is connected, connect a wire there. Feed that wire into your Microtech input.
Your voltage will be mapped as follows.
0V = 10AFR
1V = 20 AFR
Between 0-1V will be linearly porportional to the AFR. I hope this helps.
Some guy named "Rotarymagic" over at the PLX Forum, I did'nt post the entire thread cause it was hijacket.
I have a microtech LT8s and a 1989 mazda rx7 turbo II .
i would like to know wher ei can actually tap an electrical signal so i can start to datalog the manifold pressure.
i would like to know wher ei can actually tap an electrical signal so i can start to datalog the manifold pressure.
hi i am using the microtech lt8s , it expects a 0-1v signal... how can i change so i can datalog with it
Here's how.
1) Purchase 1k ohm 1% 1/4 watt resistor
2) Purchase 4k ohm 1% 1/4 watt resistor
3) Connect them in series (back to back where one leg of the 1k is connected to the one leg of the 4k)
4) Connect the unconnected end of the 4k resistor to the wideband output on the M-Series (white wire)
5) Connect the unconnected end of the 1k resistor to your chassis ground
6) In the junction where your 1k and 4k is connected, connect a wire there. Feed that wire into your Microtech input.
Your voltage will be mapped as follows.
0V = 10AFR
1V = 20 AFR
Between 0-1V will be linearly porportional to the AFR. I hope this helps.
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