rustybronco
Petty Officer 2nd Class
- Joined
- Oct 24, 2021
- Messages
- 134
ECT has a temperature Vs resistance chart. MAT is a thermister. MAP outputs a voltage. IAC should be the same. TPS is for sure.
One should be able to test/measure most of the sensors on it with a DVOM and a way to measure frequency.
"I am leaning towards a fualty ECM but that's just a hunch. Also suspicious on the raw water pressure switch mounted on the power steering cooler. Would love to test but don't know the resistance values across the 3 pins."
Buy a generic sensor and substitute?
forums.iboats.com
One should be able to test/measure most of the sensors on it with a DVOM and a way to measure frequency.
"I am leaning towards a fualty ECM but that's just a hunch. Also suspicious on the raw water pressure switch mounted on the power steering cooler. Would love to test but don't know the resistance values across the 3 pins."
Buy a generic sensor and substitute?
Alternatives to Mercruiser sea water pressure sensor
Re: Alternatives to Mercruiser sea water pressure sensor :facepalm: I never said we'd find it the automotive world... But it would be helpful to start with any markings the sensor has.... If you can find ANY markings on the sensor, please post. If this is a commonly failing part, it would be...

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