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Kupe's Zodiac 650B
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Date:  6-28-2016
Number of Hours:  1.50
Manual Reference:  
Brief Description:  Manifold Pressure Sensor Wiring

Installed the manifold pressure (MAP) sensor and wired it to the Dynon system. I selected a spot on the firewall that took advantage of a bolt hole I had previously drilled before relocating my grounding block to a different location. Installation of the sensor was easy using 2 x AN3-10 bolts.

I then connected the sensor to the Dynon EMS by building up a 3-wire Weather Pack connector for the power, ground and sensor data wires coming from the EMS sensor harness. The Weather Pack (that's a brand name) connectors are like Molex connectors on steroids. First, their pins are bigger. Second, their pins incorporate rubber plugs (cable seals) to keep moisture out of the connector. Third, their connectors also have a rubber seal around them to keep water out of the connection.

Crimping the 3 wires into the pins was accomplished using a standard ratcheted pin crimper. For the larger crimp around the rubber plug, I used a simple circular crimp. Like a Molex connector (and most other brands/styles too), pins are inserted by pressing them in until they click. When inserted, the rubber plug is compressed into the pin cylinder forming a seal. Lastly, a retaining lid slides over the pin cylinders and locks everything in place.

The only thing left to install for the MAP sensor is the hose, but that will require a double banjo fitting I won't have for a few days.
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Weather Pack pin after crimping the sensor wire and cable seal into place.

Weather Pack pin after crimping the sensor wire and cable seal into place.

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Weather Pack connector with the power wire set into position.

Weather Pack connector with the power wire set into position.

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MAP sensor with connector installed. Hose will connect from here to manifold on engine.

MAP sensor with connector installed. Hose will connect from here to manifold on engine.

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