A.E.B. PUMA Istrucciones De Montaje página 19

PROGRAMMING
How and when to disable the timing advance during deceleration and
when idling
On some vehicles it is convenient to disable the timing advance during decel-
eration and when idling to avoid jumps or irregular function.
On the other hand, the timing advance is required immediately during ac-
celeration to improve performance, consumption and to minimise the risk of
backfiring. With the PUMA timing advance processor, the timing advance can
be enabled or disabled automatically connecting the BLUE-YELLOW wire on
the timing advance processor to the throttle potentiometer.
NOTE: do not carry out the timing advance enabling calibration procedure if
the BLUE-YELLOW wire is not connected.
TIMING ADVANCE ENABLING CALIBRATION PROCEDURE
The throttle potentiometer signal is not always the same; therefore, the trip
point needs to be calibrated.
Adjustment is carried out during GAS function by acting on the timing ad-
vance trip register as follows:
1) Ensure the register is turned completely clockwise.
2) While the vehicle is idling, turn the register anticlockwise until the RED LED
switches off (timing advance disabled).
TIMING ADVANCE TRIP REGISTER
3) With this adjustment, during acceleration, the RED LED on the timing advance
processor lights up and then switches off when the accelerator is released.
LED ON = TIMING ADVANCE ENABLED
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