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@MatthewWBailey - How sure are you of the accuracy of your tach? Isn't it running off the VR?
Just trying to reconcile a seemingly functional truck, no codes present, and the stall test results.
CAT ET or any J1939 setup will read the tach from the ECM also.
Just trying to reconcile a seemingly functional truck, no codes present, and the stall test results.
CAT ET or any J1939 setup will read the tach from the ECM also.