LANDI RENZO S.p.A.
INSTALLATION AND ADJUSTMENT MANUAL LAMBDA CONTROL SYSTEM A1 V05
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GB
Electrical connections
•
three-wires lambda sensor:
individuate the
lambda signal wire as previous point. The other 2
wires are used to heat the sensor: one has a 12V
tension and the other is a negative (Fig. 6B).
•
four-wires lambda sensor:
individuate the
lambda signal wire as previous point. Other 2
wires are used to heat the sensor (see above),
while one wire is the negative of the lambda
sensor (Fig. 6C).
6.3 BLUE-YELLOW WIRE (Fig. 7)
TPS SIGNAL CONNECTION
The TPS signal communicates the position of the
acceleration throttle to the petrol computer. The
connection of the TPS to the LCS A1 V05 wiring is
made according following instructions:
•
Proportional TPS
(Fig.7A)
:
the output signal
from this sensor has a voltage that is proportional
to the throttle position. This type of sensor has 3
wires:
- one has a power supply voltage of +5V, with the
instrument panel on;
- one is connected to the battery negative;
- one is the sensor output and must be connected
to the blue-yellow wire of the LCS A1 V05. The
voltage at the ends of this wires, with respect to
ground, varies from 0 to 5V.
•
Switch type TPS
(Fig. 7B)
:
the wires on this
sensor are similar to those on a proportional TPS
above described. The output signal
from
this
sensor has only 2 conditions: 0 Volts with throttle
closed and 12 Volts with the throttle is in out of
idling condition or vice versa. Identify the wire that
is the output signal of TPS by means of a tester
(making sure that the measurements are
performed with reference to ground) and connect
the same to the blue-yellow wire of the LCS A1
V05.
Electrical connections
6.4 BROWN WIRE (lt. M Fig. 1 and 2)
ENGINE RPM SIGNAL CONNECTION
Connect the brown wire of LCS A1 V05 to the
negative of the ignition coil or, as an alternative, to
the speed indicator wire according
following
instructions:
•
connection to the coil negative of a vehicle
with a 4 cylinder engine with 2 coils or 1 double
coil: set the LCS A1 V05 Computer at the
parameter ‘NUMBER OF CYLINDERS / TYPE OF
IGNITION’
Ì
DOUBLE COIL.
•
connection to the coil negative of a vehicle
with one coil that supply all the cylinders by means
of a distributor: set the LCS A1 V05 Computer at
the parameter ‘NUMBER OF CYLINDERS / TYPE
OF IGNITION’
Ì
MONO COIL.
In both cases you have not to set the parameter
concerning the number of cylinders. On the
contrary, in the case in which the ignition system
of the vehicle has a distributor or in the case you
made a connection to the speed indicator of the
vehicle, it is necessary to set the number of
cylinder (and not to set the type of coil).
6.5 RED WIRE (lt. M Fig. 1 and 2)
12V IGNITION KEY CONNECTION
Connect the red wire of LCS A1 V05 to a key
device such as the positive of the ignition coil or to
another wire that supplies 12V when the board is
turned on.
6.6 WHITE AND GREEN WIRES (Fig. 8)
CONNECTION TO THE GAS LEVEL SENSOR
The LCS A1 V05 Computer operates with different
gas level sensors available on the
market
according following instructions:
- LANDI RENZO type Lpg/Cng sensor:
connect
the white wire of LCS A1 V05 to the white wire of
the gas level sensor; the green wire remains
disconnected, insulating its end.
- A.E.B.
type sensor:
connect both green and
white wires of LCS A1 V05 to the respective green
and white wires of the gas level sensor.
- 0-90
Ω
type sensor:
connect both green and
white wires of LCS
A1 V05 to the gas level sensor
wire.
