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How to replace an Oxygen Sensor in an ISC M40Step 1: - Open up the ISC M40The ISC M40, uses high quality, machine thread screws for the cover. Once you have removed all of the screws, use caution wh … read more

Got a MSA Altair 4 that gives you an O2 Sensor Error? Let's fix it! Step 1: - Remove the cover We'll start by removing the screws from the back cover of the MSA Altair … read more