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[Discuss] Its not possible to make things easier for users

On 01/14/2013 05:39 PM, Shirley M?rquez D?lcey wrote:
> On modern cars there is no timing that a mechanic can adjust; that's a
> throwback to the days of carburetors and camshafts. Nowadays cars have
> electronic fuel injection and electronically controlled valves and the
> timing is all done by the engine computer. If the computer is
> programmed competently, when it notices repeated knocking it will
> change the engine timing to make it stop; it's already making changes
> to deal with engine temperature, altitude, and mechanical wear. The
> catch is that this may cause a severe performance drop in an engine
> designed for high octane fuel, not the mere 10HP that somebody alluded
> to.

You are mostly correct. The only difference is that the "chip" (It's 
really/usually just a [EE]PROM) contains the tuning parameters for the 
engine. If you want to run on economical fuel you need to modify/change 
this chip. Most modern cars can use a programmer like this:

Like I said, knock sensors only detect knocks after the fact. They do 
reduce knock damage, but do not eliminate it.
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