Tom et al,

The sensors cover DDEC coaches with the exception of EGR coaches. I have not found a diagram of sensor locations on 8V92 coaches, but if I do I will add that to the article.

Adding to Brian's previous post, there are three circuit breakers which handle DDEC functions in the rear electrical box. The numbers may vary, but on my coach they are 19,20 and 21. If those breakers trip the engine will not run either. Assuming the CB is not bad, however, merely resttting the tripped breaker gets you running again.

To all the new owners..............we are not trying to scare you and these sensor, relay or circuit breaker failures are not common, but they do happen. Nobody here needs to be an expert on this stuff, but only needs to be aware there are some component failures that can shut your engine down. There is no preventive maintenance that I know of, nor is there any way to predict if or when a part will fail. In every case however the diagnosis of what failed is fairly simple and a call to the Prevost or Detroit 24 hour help lines will often allow you to pinpoint the problem.

If you use your coach in the pursuit of business you may wish to study this topic a little and carry some spares.