Thread: Rip off of the week

That is true, there are absolute limits to how useful OBDII is.

My own ute is a perfect case in point, no way ODBII or mechanic guestimate could have ever got to the bottom of that without playing the $25K parts swap lottery. It took a lot of datalogging and investigation and research to get to the bottom of the issues it had - multiple individual faults contributing to the same issue and throwing the same series of DTC's. Getting rid of the noise from the electronic problems allowed us to really focus onto the mechanical stuff, which meant that the actual problem could be diagnosed and fixed. Over a couple of years of work - if I wasn't doing it myself no way it would have made financial sense to do the work as is it's marginal with the number of individual parts that got replaced.

But at the end of it the thing is mechanically good enough and runs so well that there isn't any advantage to change it out especially at the price of the new ones. Circa $90K to swap out now, ridiculous $$$.