VACUUM FROM THE TRANSDUCER TO THE EGR VALVE

  • Tiny
  • leavitt
  • Member

Voltage to the pcm or the power voltage going in to the sensor

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Saturday, August 18th, 2012 AT 10:13 PM
  • Tiny
  • saturntech9
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I would say you have a wire going to the map sensor thats close the map sensor that is bad. Probably the copper wire is broken inside the insulation. To me thats the only thing that makes sense at this point.

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Saturday, August 18th, 2012 AT 10:17 PM
  • Tiny
  • leavitt
  • Member

What do you mean by close the map sensor

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Saturday, August 18th, 2012 AT 10:31 PM
  • Tiny
  • saturntech9
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I missed a word close to the map sensor. Meaning when you unplug or plug in the map sensor connector you disturb the bad wire.

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Saturday, August 18th, 2012 AT 10:40 PM
  • Tiny
  • leavitt
  • Member

I understand now. One I mit have a bad wire or two I have a bad plug. So what you are saying is test the wires when I move them around and test that plug to see it one breaks the connection

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Saturday, August 18th, 2012 AT 10:44 PM
  • Tiny
  • saturntech9
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Heres what I would do put the key in the run position engine off watch the map sensor volts while moving the wired connector etc around.

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Saturday, August 18th, 2012 AT 11:03 PM
  • Tiny
  • leavitt
  • Member

Ok I will go do that now

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Saturday, August 18th, 2012 AT 11:04 PM
  • Tiny
  • saturntech9
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Keep me posted.

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Saturday, August 18th, 2012 AT 11:30 PM
  • Tiny
  • leavitt
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Ok I have checked the connection at the sensor and moved around the wires and everything seems tobe fine with the connection and I also checked the voits the power wire was 5 volts and the signal wire was 4.5 volts but im wondering about the ground wire that goes to the sensor

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Sunday, August 19th, 2012 AT 11:02 PM
  • Tiny
  • saturntech9
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Are these readings with the map sensor plugged in?

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Monday, August 20th, 2012 AT 3:35 PM

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