LANDI RENZO S.p.A.
INSTALLATION AND ADJUSTMENT MANUAL LAMBDA CONTROL SYSTEM A1 V05
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Carburation learning procedure
In the case some
error messages
are displayed on
the Programmer Tester V05 (or personal computer
with Interface Kit V05) as for example ‘OK TO
RESET TESTER’, or in the case it is not possible
to dialogue with LCS A1 V05 Computer, it is
necessary to disconnect both the
computer
connectors and let them disconnected for at least
3 minutes in order to reset completely the internal
circuits. After you
will precede with a
ne
programmation.
7.4 MALFUCNTIONING DIAGNOSIS
The Switch / Gauge LCS A1 V05 is in the position
to point out to the installer or the driver some error
conditions. While the car is running on gas, if the
green led D (letter B Fig. 5) begins flashing slowly,
this indicates that one of the following
error
conditions has occurred:
•
lambda sensor is not working;
•
lambda sensor detects a rich mixture for too
long;
•
lambda sensor detects a lean mixture for too
long;
The type of error, even if no longer indicated the
next time the car is started, is permanentl
recorded in the memory of the LCS-A1 V05. Use
the Programmer Tester V05 or the Interface Kit
V05 to display the type of error and, once the
problem has been solved, it can be cancelled from
memory.
8. CARBURATION LEARNING PROCEDURE
WITH LCS A1 V05
To learn the carburation with LCS A1 V05 follo
listed instructions:
a) Replace the fuses on the wiring (fuses removed
during the installation of LCS A1 V05).
b) Connect the Programmer Tester V05 (or the
personal computer with Interface Kit V05 installed)
to the diagnostic and programming outlet located
on the LCS A1 V05 Computer wiring,
c) Use the Programming Tester V05 (or
the
personal computer) to adequate option per option
the parameters of LCS A1 V05 Computer to the
specification of the vehicles (see par. 7.2).
Carburation learning procedure
GB
d) Check that the set values on LCS A1 V05
Computer are exactly correspondent to the
characteristics of the vehicles. If not, reset the
memory of LCS A1 V05 and check that it
memorise the standard values pointed out in bold
type on the paragraph 7.2; after, set another time
the parameters of LCS A1 V05 Computer and
repeat the verify.
e) Start the car with the Switch / Gauge LCS A1
V05 in petrol position and wait a few minutes for
the lambda sensor to heat up.
f) Enter in the ‘DISPLAY’ page of the Programming
Tester V05 (or personal computer).
0,0 - 5,0V (2,8V)
g) With the car stationary, switch to gas and
accelerate and decelerate at intervals of a fe
seconds; this will allow the LCS A1 V05 Computer
to learn the position of the TPS minimum.
h) At this point the regulator peak speed is
adjusted: rev the engine to about 3.500 rpm. until
when the default value is learned (the number on
the Tester Programmer displayed at the parameter
‘DEF’ will change).
i) Then the regulator idling speed is adjusted: with
the engine running, turn the idle speed setting
screw until, on the Tester Programmer V05 (or
personal computer) the number of steps of the
Actuator indicated in menu ‘Display’ at the word
‘ACT’ is equal (or as close as possible) to the
value indicated at the word ‘DEF’.
l) After a few seconds, the lambda signal will begin
shifting, indicating that the carburation has been
learned.
m) Check with the exhaust gas analyser that the
lambda value is equal to about 1,000 and that CO,
HC and CO
2
are as shown on the prospect of the
LANDI RENZO regulators installation
and
adjustment manual.
n) When idling and peak speed are adjusted, carr
out a road test.
Date, descriptions and illustrations are indicatory.
LANDI RENZO S.p.A. reserves the right to
improve or modify them without prior notification.
