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Mut 3 protocol

Old Feb 9, 2019, 01:52 PM
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Mut 3 protocol

Does anyone know whether the Mut 3 protocol has bidirectional controls. I am having an issue with my Evo 9 RS throwing EGR code P0403 upon startup. I clear the code but it comes right back when the car is started. I have gone through everything; solenoid, vacuum lines, EGR, mfi relay, checked for open and grounds in the control circuit, and I cannot find anything wrong. I need a way of activating the EGR to see if the problem lies in the computer. I was curious if the Mut 3 is capable of this or whether someone knows of a scan tool thatís capable of activating EGR without breaking the bank?
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Old Feb 13, 2019, 11:16 PM
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Old Feb 14, 2019, 07:48 AM
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Not the answer to your question, but hopefully this helps you

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