The strap down fee is legit. Its a minimum fee because what you dont understand is tons of dickhead kids bring their cars into get tuned and claim all is well, then expect the tuner to diagnose the cars problems when its not running correctly.

Take your IAT sensor, that's your problem. Tuners are not mechanics and diagnostics people per se. You should have made sure your CaR was 100% before you brought it in.

The fact they were incompetent at tuning is a separate argument . if you really want Ed, then wait for him. Or vet other tuners.

I hate when people are too lazy to do proper research then bash a shop because of their ineptness .