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Old 01-18-2012, 11:57 AM
TNC TNC is offline
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Probably the only element in one of these aftermarket tuners that could involve potential damage would involve timing and fuel mixture. If the tuner had the capacity to increase timing and lean out fuel mixture to the point where serious, continuous detonation could occur, you could obviously damage the engine. Still, you'd probably have to be deaf not to hear the constant "pinging" that was singaling this condition. I don't think most of the quality programable units out there have pushed the limits that far. Those that allow true laptop manipulation of most/all of the fuel and timing elements by an end user in a computer could cause damage if you didn't pay attention to what you were doing. As SS4luck stated, most of these programmers use fixed, optional choices that are withing a relatively safe envelope.
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