Re: Which Truck should I buy
I suspect the scenario would play out much as the Class 8 scenario scenario is playing out. It's not a matter of sniffing the tailpipe for out of parameter emissions, in fact, thats old technology.
What is done now, is emissions testing officials plug into the molex connector that is on every engine management computer (all vehicles) and down load the snapshot data.
Every vehicle built in the last 10 years or so has the capability (some more,some less) to record in non-volitale memory, everything from sudden stops to hard acceleration and excessive side forces plus it records all engine and chassis events. It updates continuously and it's inside the ECM.
It's become SOP for insurance crash investigation as well.
You modify the engine and change the operating parameters, and it records the event. You install the plate you refer to and the ECM notes the change in parameters and records that event. Don't have to have a check engine light or fault code, it's recorded and all any officer has to do is plug in and down load.
In fleet safety, I have a program on this laptop that allows me to snapshot any of our trucks at any time to check for things like excessive speed, hard stops and excessive side forces and I can to that without plugging in, with a keystroke.
The transponder is coupled to the ECM. All I have to do is ask the transponder for the data and it's mine.
In my position as fleet safety officer, I need that, not to incriminate an employee, but to observe driving habits and take corrective action, if necessary.
'It's not about me
, it's about we