Category: GPZ900R Project

Choosing a water temperature sensor for MicroSquirt

GM Coolant temperature sensor

Another of the challenges associated with fuel injecting an old motorbike is that none of the existing sensors were ever intended for connection to a modern engine management system. In particular, the coolant temperature sensor in the radiator has a single signal wire coming out of it and the ground return is through the chassis …

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Calibrating a MAP sensor with MicroSquirt

TunerStudioMS MAP Calibration

I was faced with the challenge of installing a Manifold Absolute Pressure (MAP) sensor on my Kawasaki GPZ900R fuel injection project. This sensor, together with an intake air temperature sensor is used in calculating the density of air entering the engine, and therefore how much fuel to inject using the Speed-Density algorithm. The challenge is …

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