Carburation learning procedure
LANDI RENZO S.p.A.
Installation and adjustament manual Lambda Control System/2
17/38
position sensor
]]][]]]
: indicate if you are in an idling condition,
cruise condition or maximum open throttle condi-
tion
att*
: indicates (in number of steps) the position
of the electromechanical linear slow-speed actua-
tor in real time.
def*
: indicates (in number of steps) the acquired
default position (standard value) of the electrome-
chanical linear slow-speed actuator.
RPM
: indicates the revolutions per minute of the
engine in real time.
TPS
: indicates (in volts) the position of the accel-
eration throttle sensor.
m [] M
: indicates whether engine speed is slow (
m
[] M
) or at runaway speed rate (
m ][ M
).
R ]]][]]] M
: indicates mixture phase, poor or
rich mixture.
When the LCS/2 is new or just reset, the DEF de-
fault position of the electromechanical linear ac-
tuator is 100 steps
.
The TPS minimum position and the default posi-
tion of the medium and peak actuator speeds, of
the actuator and of slow speed are acquired every
time the system is switched on; the last acquired
default is used as departure position.
LAMBDA SENSOR LEARNING RANGE: indicate
if you are in a poor or rich mixture condition
With LCS/2 Computer new or resetted the ‘DEF’
position of the Linear Electromechanical Actuator
is 100 steps.
The minimum TPS position and the default posi-
tion of the Linear Electromechanical Actuator are
acquired at every ignition of the system; the last
acquired default is used as starting position.
NOTE: the electromechanical linear actuator of the
medium and peak speeds is indicated on the dis-
play of the Programmer Tester V05 by the mes-
sage att-Max; the electromechanical linear slow
speed actuator is indicated by the message att-
min.
7.2 LCS/2 PROGRAMMABLE FUNCTIONS
Here below are indicated the programmable functions of LCS/2 with relevant programming menu and
options in which are pointed out in bold type the standard parameters settled with computer new or
resetted.
Number of cylinder / type of ignition: ............................ double-coil, single-coil, 4/5/6/8 cylinders
Rpm signal ............................................................................................................. standard, weak
Petrol/gas automatic change .................................. in deceleration, in acceleration, gas starting
-Priming time
1
...........................................................................................................................................................
(0,8 sec); 0,0 ÷ 5,0 sec.
-Temperature for change (optional)
2
...............................................................................................................
(30°C); 20° ÷ 40°C
Rpm for automatic change
2
.......................................................................................................
(2.000 rpm), 400 ÷ 9.000 rpm
-Fuel overlapping time during automatic change
2
......................................
(0,400 sec.); 0,000 ÷ 1,000 sec.
Tps (throttle position sensor)Linear 0-5V, 5 - 0V; switch 0 - 12V,12 - 0V; mono bosch; tps adapter
Gas level sensor ...........................................................................
Landi renzo, A.E.B., 0-90 ohm
Lambda sensor .................................... 0 - 1V; 0,8 - 1,6V; 0 - 5V ‘a’; 0 - 5V ‘b’; 5 - 0V ‘a’; 5 - 0V ‘b
Lambda sensor reading delay ................................................................... (5 sec.), 0 ÷ 1.250 sec.
Lambda sensor emulation ................................................... Square wave, disconnected, ground
-high time
3
.........................................................................................................................................................................
(0,36 sec.), 0 ÷ 5 sec.
-Low time
3
.........................................................................................................................................................................
(0,36 sec.), 0 ÷ 5 sec.
-Disconnected sensor time
3
....................................................................................................................
(0,00 sec.), 0 ÷ 654 sec.
-Number of waves after disconnection
4
....................................................................................................................................
0 ÷ 255
Actuator-max jump in acceleration ................................................................ not enabled, enable
-Actuator-max position during jump
5
........................................................................................................................
40 ÷ 240 steps
-Tps for jump
5
..............................................................................................................................................................................
1,5 ÷ 5,0V (2,8V)
Actuator-max high position ................................................................ (240 steps), 20 ÷ 240 steps
Tps to release limitation ..................................................................................... (2,8V), 0,0 ÷ 5,0V
Actuator-max low position .................................................................. (20 steps ), 20 ÷ 240 steps
RPM reference act-min ..................................................................... (1100 RPM), 600-2000 RPM
Act-min high position ........................................................................ (160 steps ), 20 ÷ 160 steps
