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    Erratic exhaust temp readings!! HELP!!

    Hi All, I’m getting irregular exhaust gas temperature readings from my EGT sensor upstream from the SCR cat. It jumps from what appears to be the correct value (it varies depending on operating temp) to -0.04 degrees, and back. I thought it was the sender but if I disconnect the sender, the CDU...
Specialist in parts for W140 and R129 Mercedes-Benz models.
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