I didn't do any tuning at all. The owner was not very computer savvy, so I took control of his laptop remotely, and set up his wide band controllers, and watched as he set his fuel pressure, base idle speed, etc.
I then used the diagnostic capabilities of the system to verify that everything was OK, and found a small issue with his fuel supply system. Later, after he made the repair, I took over his laptop again and verified the repair.
I didn't tune around anything. I rarely do. If we find a problem, I always encourage the customer to fix the car the right way, rather than tune around a problem. The results are much better.
It is true that I spend quite a bit of time helping people fix their cars, despite the fact that their problems have nothing to do with anything we've sold to them. Lets keep in mind that these cars are very old now, and often have 20 plus years of problems and poor quality work.
Whats funny is the "kill the messenger" mentality some people have. Remember... Neither I, nor our products, screwed up your car. All we did was identify the problems you had long before we ever came along. I did however help you fix it.
And the only cost for these repairs is the price of the parts. I do not charge for diagnostic time, and there is no need to go spend money at the dyno trying to tune around the problems.
It's odd that some people think this is a bad thing... You can criticize me and my products for this if you'd like. I'll sleep well knowing that I just helped another person enjoy their car for the first time in years.