My Monty just up and died yesterday while I was cruising down the freeway. Mechanic says that the ECM is damaged and will need to be replaced. Was planning to send it to avpro ecm to have the work done.

Now for the question. Do we assume that the ECM failed simply because it is old or should we spend a lot of time and money searching for something that may have caused the failure? I read about the ISC thing and the possibility that this could damage the ECM.

I am inclined to assume it is the ECM that has failed on its own and have it replaced. I welcome any and all opinions for or against. Anything else other than the ISC should be checked?

Thanks