Intake air temp sensor? If so, they didn't introduce that until 89+ so I don't have one.
Regarding the wide band o2 sensor...that is new to me although I understand "what" it does. Do you have any more information as to where to get one or which one to get? Does it require a new O2 sensor itself, or is it just an add-on? I'm all for owning what I need since I have two cars that may benefit from it.
I'll check plug wires although I'm sure it won't give any indication since the car is not misfiring.
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The harness is a factory tool from MB. Part # 102 589 04 63 00
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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k
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