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Thread: Delphi map/mat sensor

  1. #1
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    Delphi map/mat sensor

    http://delphi.com/shared/pdf/ppd/sen...at-sensors.pdf

    Well I wanted to add a mat at some point and find somewhere to mount the map sensor on my truck to do away with the bracket mounted on the intake manifold...this would seem to be a good solution with being able to mount it directly to the manifold.

    Now where do I find one? A quick google search turned up nothing other than the above press release.
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    Wow, thats pretty neat. If you find a souorce, let us know.
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    weird.... i've never seen a combo sensor like that.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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    Quote Originally Posted by RobertISaar View Post
    weird.... i've never seen a combo sensor like that.
    Yeah, I never knew they existed until I stumbled across that Delphi page while looking for a mat sensor.

    Just ordered a used one from fleabay...

    http://item.mobileweb.ebay.com/viewi...d=390058511106
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    Pretty lame cars to have a cool sensor?

    Anyone checked the specs to match GM?

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    Quote Originally Posted by EagleMark View Post
    Anyone checked the specs to match GM?
    ]the transfer sheet is shown in the PDF....

    it's not quite a match.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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    Not sure if Delphi is the manufacturer of that Chrysler piece or not. I haven't been able to find any specs on that particular sensor yet. I'm going to hookup a vacuum pump to it when it shows up and check output voltage vs. vacuum.
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    you'll need to check the IAT output as well....
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    Will do. I'm wondering though, if the output is off in regards to what the ECM/PCM wants to see, is there any way to make it work?
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  11. #11
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    for IAT, semi-easy, since you could always just modify the transfer table in the calibration.

    the MAP..... not as easy. you could use the signal natively, but expect to have to retune nearly the entire VE and spark table. otherwise, a patch would be required to more or less emulate a GM 1BAR sensor.
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    Ah, I see. Well, redoing the entire VE table is really no biggy since I'm starting over from scratch with a stock bin anyways. It's going to have to be done either way.
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  13. #13
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    Quick question: How do I bench test sensors? I was just going use a car battery regulated down to 5v as a voltage supply, however the voltage regulator I found at RadioShack says it can put out up to 1 amp of current. Is that much current going to cook my map sensor?
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    Doh! It's the circuit that determines amperage draw isn't it? The regulator has nothing to do with it... Dumb question sorry, I've never actually had to think about this kinda stuff
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    yeah, the components connected to the regulated source determine draw. a MAP sensor usually has between 5K and 50K of resistance, so VERY little current is consumed. you'll want to verify with a multimeter just to be certain though.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


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