Question about 1995 Toyota Corolla

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MAP sensor wiring to ECU

I need to know which wire from the MAP sensor to the ECU I would tie into to install a ''MAP sensor enhacer'' for a HHO system? Would it be the Yellow wire or the Green with red tracer? It on a 1995 Toyota Corolla?

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  • rlaredneck Feb 11, 2009

    So to interupte the voltage signal controlling the ECU has the fuel as to hyow to ajust the fuel to air mixer wheather itmay be Rich or Lean . I want to be able to control that signal t make it rich: You Know KInd-of Fooling the ECU into thinkg that it is making it rich but in seat I'macutally making it Leam becasue the HHO system adds more Oxegen into the maifold.

    So in short that would be the Y ELLOW wire?? " Right???

    Thanks Kindly for you helpful info your the only one that has ffoered to help me!!!!!!

    Rocky Berry


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There are 3 wires from the MAP to the ECU

Brown is E (Ground)

Yellow is VC to VCC (sensor to ECM)

Light Green with a Red tracer is PIM to PIM

Posted on Feb 10, 2009

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MAP sensor

There are 3 wires from the MAP to the ECU

Brown is E (Ground)

Yellow is VC to VCC (sensor to ECM)

Light Green with a Red tracer is PIM to PIM

Hope this helps. Thnaks for choosing FixYa for assitance.
A FixYa rating from you from my answer would be appreciated.
Thanks in advance.

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On a 4cyl the map has black gray and light green, the black is ground, the gray is a 5 volt refrence from the pcm(power control module), and the light green goes to to ECU for MAP input.

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