Danno wrote:Lets get the factory warranty issue right out in the open here so there's no more conjecture because it's important to some of us and it's come up before a few times.
If something goes wrong with a motor that can possibly be attributed to a reflashed ECU who's paying?, returning it to a factory flash would be awkward on the back of a tilt tray and I suspect Isuzu could tell that it has been flashed in the past anyway, there would be a trace left somewhere. Even if the flash had nothing to do with the fault, Isuzu will use that to get out of paying in any case.
So the question is if there is a problem and Isuzu do find the reflashed ECU what will be the response? can they reject a claim based on it?
Some of the chip suppliers offer to take over the engine warranty in the event of a chip causing an issue I believe, what's your stance on this?
Sorry to be so blunt but it's a question that gets asked many times.
Welcome to the forum.
Welcome to the forum indeed!!
Warranty is always a contentious issue and also pretty emotive so I wont go too deep into it here as I dont wish to take on Isuzu Motors legal department either...
We havent had an engine fail due to a remap, blowing up engines isn't good for business as you can well imagine. We only modify the stock tune file within safe limits, thats why you dont see any grandiose claims from us as we're about reliability as much as gains
Some engines fail, modified or stock, its a fact of life. I know of cases where an engine has failed that had a chip on it, the owner left the chip in place when he presented the vehicle to the dealer and the dealer replaced the engine no questions asked. Then I have seen cases where a dealer wont honour warranty because a "non approved" towbar was installed. So its a very subjective issue and dealers and manufacturers can be and are quite discretionary when electing to honour warranty - or not.
ECU Remapping is not at all visible or in your face, compared to a chip or 3" exhaust, dealers are more likely to reject warranty claims when faced with modifications they can see.
And I havent come across a dealer yet who can compare two tunefiles (stock v's tuned) and detect differences in them either.
I dont believe there is a flash counter in the Isuzu ECU - these can be reset any way.
Remember, on average a remap will yield gains of 25% - a 3" exhaust will see gains of around 5% - sometimes you will lose power when fitting a 3" - so the risk of fitting an overt modification like an exhaust is pretty high relative to the performance gain.
What I say to people is, if you are really stressed about warranty, dont modify your car in anyway.
If you want to enjoy the full potential of your car, then have it tuned. The choice is yours.
Please dont turn this thread into a warranty discussion - if you have further questions regarding this give me a call and I'll go through it with you.