Quote:
Originally Posted by Tiddy
Pretty impressive results for sure, I have seen the claims that Roo Systems are making for their re flash on the Discovery, seems to be more effective than re chipping.
But would this affect the warranty and does it leave a trail in the ECU?
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ECU flashing is by far the best way and its the easiest on the engine components: many chips just do fuel pressure and to get near to the claimed results the fuel pressure has to be jacked up pretty high, this works the pump and injectors hard, by comparison re-tuning the ECU allows us to do a little bit to fuel pressure, a little bit to injector duration, a little bit to boost and minimise some torque parameters and all this adds up to a really good gain that chips or modules cant get near. Having said that, the module I had on my car previous made the same peak power as the flash tune but is nowhere near as good in torque or in down low to mid range power (where you use it).
I cant imagine Jeep would be overly happy about us re-tuning the ECU so yeah it could effect your warranty. Your local dealer may be able to see when the ECU was last flashed with there scan tool but they cannot see what changes were made unless they looked very very hard ie. out of the scope of normal servicing.
