Mitica Pastilla A B en c20xe.

[eusko_astra]

Y aprovecho para dejar un manual de funcionamiento (de esos que nadie se lee jaja) muy muy completo de M2.5. Explica como funciona tecnicamente cada sensor al dedillo y como funciona el sistema entero explicando todos los detalles. Es bastante tecnico y esta en ingles, pero muchas de las cosas que dice este manual sirven para desvirtuar muchas leyendas urbanas.

Opel_Motronic_2.5.pdf

Y buscando tambien he encontrado el de M1.5

opel_motronic_1.5.pdf

Y copio literalmente lo que dice el manual:

"Octane coding
It is not possible to adjust the ignition timing on the Motronic 1.5 system. However, an octane coding plug is provided to enable
the ECU to adopt different characteristics to suit various operating conditions.
The ECU has been built with several different programs to cater for various circumstances, and selecting an alternative Octane
Plug or setting will trigger a different program. The most obvious change is from leaded to unleaded fuel - or vice versa, when the
ECU may alter the ignition timing and fuel map to cater for the changed conditions.
Simply turning the standard 95/98 Octane Plug to its alternative position will fulfill the alternative condition. Other conditions may
be fulfilled by fitting an alternative octane plugs - such as the 95/91. A number of other octane plugs are also available and
depending upon the Octane Plug chosen, will cause fuel enrichment during acceleration, overall fuel enrichment throughout the
engine speed range, timing retard or an increase in idle speed. However, fitting alternative plugs should be approached with
caution as the effects may be detrimental to good running and economy."

Un saludo