Installation and adjustament manual
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REGULATION
6. Lpg operation parameter
verification
After the installation has been completed and the
appropriate mechanical and electrical checks have been
performed, and after the ECU has been programmed as in
sub-heading 6.5, it is possible to proceed with verification
for correct system operation while keeping the PC
connected to the ECU.
1) Connect the system’s working pressure diagnostical
device as in Fig. 6.1.
2) Undo plug A and screw in the sensor B.
3) Set the fuel switch on the petrol position.
4) Start the engine.
5) Keep the engine running for a few minutes, or until the
water temperature reaches 50-60C.
6) Set the fuel switch on LPG position.
7) Make sure that the engine actually operates on LPG by
accelerating/decelerating, thus achieving the fuel switch
over.
8) With the PC displaying the main menu, press F2. This
causes the display of the ECU MANAGEMENT menu,
as in Fig. 6.2.
9) Press F1 DISPLAY AND VERIFICATIONS.
10) A window will appear as in Fig. 6.3.
Fig.6.1
With the engine running and idling, the following data
must be read in the MONITOR ECU to know that a correct
installation and carburetion has been performed:
Sensor status
Lambda ................................. 0-1.0V variable read-out
MAP...........the displayed value must be slightly greater
than the median mark.
Regulator
Temperature ...................................... greater than 25°C
Pressur..........................................................0,95 ÷ 0,98
If the pressure is on “Low” or “High”, turn pressure
regulator-vaporizer’s adjusting screw (L) as in Fig. 6.4
until the exact value is achieved and OK is displayed on
the screen.
Fig.6.2
Fig.6.3
TPS
-
With direct TPS (idle voltage about 0V), the first bar
must be fully lit. When accelerating, all bars must be
lit.
-
With inverted TPS (idle voltage about 5V), all bars must
be lit. When accelerating, all bars must be off.
Integrators
When the above-mentioned procedures have been
completed with satisfactory results, it is necessary to road
test the vehicle.
To confirm the system’s correct operation for good
driveability, Integrator 1 must show an average value
b10 and -10, while Integrator 2 must show an
average value b20 and -20.
Remove the system’s working pressure diagnostical
device (B) and screw in the plug (A) as in Fig. 6.1.
Fig.6.4
