Also, there is nothing to stop anyone filling a car up with crap 95RON fuel when it's been mapped on V-power etc...
Quoted for the truth! A car could leave a tuner being 100% perfect, then the owner could fill up with poor quality fuel (either because they HAD to, or because the fuel has just gone off in general), then next time they thrash it, it dets it's head off and goes bang. When stripped down it will show lots of det marks, but how can one proove it's the tuners fault, and not the fault of a faulty injector, weak fuel pump, bad fuel, dodgy FPR, etc, etc.
Even during mapping, if for whatever reason, during mapping the engine were to loose oil pressure and go bang because there are no gauges to monitor it, then is that the mappers fault?! Of course not, but just because he was unlucky enough to be sitting with his laptop at the time he will get the finger pointed at him.
However, unless someone takes liability it would have to go to court, and in that situation the owner will find it VERY difficult to proove it was the tuners work and nothing else that killed their engine, unless of course the map is rediculously silly. However if the map looks good & safe overall, and was fine in the logs until it went pop then realistically the courts won't give the owner a penny.
It's a sad truth, but I know of 1 so-called "pro" who has had engines go pop on the dyno, then give back the keys saying "sorry mate" and having the cheek to still charge £300 for mapping + the £200 dyno time!! In some cases, some spectators have head the engine detting from the outside, while said tuner has "missed" it, even though they are the one with det-cans hooked up. Has anyone seen their money back of this person?? Have they f**k. It's not just 1 or 2 they have killed either! :disgusted: