AFM measurement/backpressure (was Turbo speed sensor)

[Ludis Langens]

Bernd Felsche wrote:
> 
> Yes; retard with EGR because the mixture is more volatile. There is
> more energy in the mixture before compression increasing the
> likelihood of knock.

GM advances the timing when they turn on EGR.  This causes pinging when
the EGR valve fails (closed) but the ECM doesn't notice.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/

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