I have 3 of these in my tool box. I have had them for years. I kind of remember one of them being bad, but im not sure. And if it is, I'm definitely not sure which one it is.
How do I test them to see if it hey are in working condition?
GM 3 bar MAP sensor
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Re: GM 3 bar MAP sensor
Give them 5V power and ground, and make sure they put out around 1.6 to 1.8 volts on the signal wire.
Matt Cramer -1966 Dodge Dart slant six running on MS3X